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A modern housing project in Nijmegen, Netherlands, uncovered the largest Roman bathhouse ever found in the country. Beneath an old industrial site, archaeologists found heated floors, ancient streets, luxury homes, coins, jewelry, and thousands of Roman artifacts from Ulpia Noviomagus — a buried Roman city hidden under the modern world.
They were preparing an old industrial site in Nijmegen, Netherlands, for new homes… but beneath the modern city, archaeologists uncovered something incredible.
Hidden under the Waalfront district was a massive Roman bathhouse, part of the ancient city of Ulpia Noviomagus. The complex covered at least 4,900 square meters, making it the largest Roman bathhouse ever found in the Netherlands.
But this was more than one buried building. Around it, archaeologists found streets, luxury homes, Roman objects, coins, jewelry, bone hairpins, and signs of a wealthy city that had been hidden for nearly 1,900 years.
This is the story of how a modern construction project revealed Ancient Rome beneath a Dutch city.
What would you do if workers found an ancient Roman city under your neighborhood?
Sources:
https://archaeologymag.com/2026/06/roman-bathhouse-found-in-nijmegen/
https://nltimes.nl/2026/06/16/large-part-roman-bathhouse-found-intact-excavations-nijmegen
https://timesofindia.indiatimes.com/world/rest-of-world/largest-roman-bathhouse-ever-found-in-the-netherlands-unearthed-beneath-dutch-city/articleshow/131850895.cms
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0:00
September 2025, Nijmegen, Netherlands.
0:03
An old industrial site was being
0:05
prepared for new homes. From above,
0:07
nothing about the place looked ancient.
0:09
Concrete, factory ground, construction
0:12
plans, a modern city getting ready for a
0:14
new neighborhood. But beneath that
0:16
ordinary piece of land, archaeologists
0:19
began finding things that did not belong
0:21
there. Stone foundations, ancient walls,
0:24
old streets, coins, jewelry. Then the
0:27
pattern grew larger. One wall became
0:30
part of a building. One building became
0:32
part of a street. One street became part
0:34
of a buried neighborhood. And then they
0:36
found something under the floor. Small
0:38
brick pillars, rows of them, built to
0:41
hold up a raised floor almost 1,900
0:44
years ago. This was not a basement. It
0:46
was not a storage room. It was not one
0:48
forgotten Roman chamber. It was
0:50
something much bigger. And when
0:51
archaeologists finally understood the
0:53
shape of what they were uncovering, they
0:55
realized they were standing inside one
0:57
of the most important Roman discoveries
0:59
ever made in the Netherlands. A massive
1:01
Roman bathhouse, hidden beneath a modern
1:04
Dutch city, in a place that was about to
1:06
become new housing. So, how does a Roman
1:08
bathhouse disappear under a modern
1:10
neighborhood? Who used it? What was
1:12
found around it? And why was this buried
1:15
complex far bigger than anyone expected?
1:17
Let's get into it. The city is called
1:20
Nijmegen today, but almost 2,000 years
1:23
ago, this place had another name, Ulpia
1:25
Noviomagus. It was a Roman city on the
1:28
river Waal, in what is now the
1:30
Netherlands. And this was not just a
1:32
small outpost at the edge of the Roman
1:34
world. It had streets, public buildings,
1:36
trade, wealthy homes, Roman culture, and
1:40
people who lived much closer to the
1:41
comfort of Rome than many would expect
1:43
this far north. But over time, the city
1:45
changed. Roman walls disappeared.
1:48
Buildings collapsed. Stone was reused.
1:51
New generations built over old ones. And
1:54
eventually, the Roman city became a
1:56
layer beneath the modern one. For
1:59
centuries, people walked above it.
2:01
Factories rose over it. Roads and
2:04
buildings changed the landscape. And
2:06
beneath the Wallfront District, one of
2:09
the city's largest Roman secrets
2:11
remained underground.
2:13
The excavation did not begin as a
2:16
treasure hunt. No one was walking
2:18
through a forgotten forest looking for
2:20
ruins. No one was searching for a lost
2:22
temple. This was rescue archaeology. The
2:26
kind of work done before modern
2:28
construction changes the ground forever.
2:31
Archaeologists from RAAP and BAAC
2:36
were examining the old industrial site
2:38
before new homes could be built. And as
2:40
they dug, the modern world started to
2:43
peel away.
2:44
First came walls, then more walls, then
2:48
traces of streets, then parts of houses,
2:52
then richer buildings. Each discovery
2:55
made the site feel less like an isolated
2:57
ruin and more like a buried piece of a
3:00
Roman city.
3:01
But the most important clue was still
3:04
under the ground.
3:05
Because then, archaeologists uncovered
3:08
parts of a Roman heating system,
3:11
a hypocaust.
3:13
The Romans used it to heat rooms from
3:15
below the floor. Small brick pillars
3:18
supported the floor above.
3:20
Hot air moved through the empty space
3:22
underneath. And nearly 1,900
3:25
years ago, people could step into warm
3:28
rooms while the cold northern weather
3:30
stayed outside.
3:32
That one detail changed the feeling of
3:35
the entire excavation.
3:38
Because a hypocaust was not ordinary.
3:41
It meant comfort,
3:43
engineering,
3:44
money,
3:46
a public building built to impress.
3:50
Then more of the plan appeared.
3:52
Concrete floors,
3:54
water channels, stone foundations,
3:57
raised floor supports,
3:59
rooms connected together.
4:02
And suddenly, the archaeologists were
4:04
not looking at a random Roman building.
4:07
They were looking at a bathhouse.
4:10
A huge one. At least 4,900
4:14
square meters, more than twice the size
4:17
of some other major Roman bathhouses
4:19
previously known in the Netherlands.
4:21
This was not a small bath for a few
4:23
people. This was a massive public
4:26
complex.
4:27
The largest Roman bathhouse ever found
4:29
in the Netherlands. And that matters
4:32
because in the Roman world, a bathhouse
4:34
was not just a place to wash. It was one
4:36
of the centers of public life. People
4:39
went there to [music] bathe, but also to
4:41
talk, relax, exercise, meet friends,
4:44
show status, hear news, make deals, and
4:48
take part in the social life of the
4:50
city.
4:51
A bathhouse this large says something
4:53
powerful about Ulpia Noviomagus.
4:56
The people here were not simply
4:57
surviving on the edge of the empire.
5:00
They were living with comfort, with
5:02
wealth, with Roman habits, with heated
5:05
floors, decorated walls, public spaces,
5:08
and the kind of architecture that was
5:10
meant to be seen.
5:12
And the deeper the excavation went, the
5:14
more luxurious the building became.
5:17
This was not a rough structure with bare
5:19
rooms. The bathhouse had marble, white
5:23
and black limestone tiles, colored
5:25
plaster, decorative stone, architectural
5:28
details, walls and floors designed to
5:32
show status.
5:33
This was Roman luxury far north of Rome.
5:37
But the bathhouse was only the
5:39
beginning.
5:40
Around it, archaeologists found more of
5:43
the Roman city. Blocks of houses,
5:45
streets between them, luxury urban
5:48
homes, and even a tower.
5:51
That changed the story completely.
5:54
Because they had not just found one
5:56
building under a construction site. They
5:58
had found part of a Roman neighborhood.
6:01
A buried city layer beneath modern
6:04
Nijmegen.
6:05
Above it, people had planned new homes.
6:08
Below it, another city had already been
6:11
there for almost 2,000 years.
6:15
Then came the objects. And the objects
6:17
brought the people back.
6:19
Archaeologists found jewelry, coins,
6:23
bronze pieces, personal items. And one
6:26
of the most striking discoveries was a
6:29
bronze figure of Bacchus, the Roman god
6:32
of wine.
6:34
It may have belonged to a pouring vessel
6:36
or a piece of furniture before being
6:38
reused later as a weight. But whatever
6:41
it's exact purpose, it did something
6:43
[music] powerful.
6:45
It turned the ruin from stone into
6:48
[music] life.
6:49
Not just walls, not just floors.
6:53
A face.
6:55
A god.
6:56
A small object someone once handled.
7:01
Then they found hundreds of bone
7:03
hairpins.
7:05
These were used in Roman hairstyles,
7:07
especially the complex hairstyles worn
7:09
by women.
7:11
And two of them had a detail that almost
7:13
feels impossible to ignore.
7:16
Cats.
7:17
One sitting,
7:19
one standing.
7:21
It is a tiny detail.
7:23
But it may be one of the most human
7:25
parts of the discovery.
7:28
Because a bathhouse tells us about the
7:30
city.
7:31
But a hairpin tells us about a person.
7:35
Someone stood in this city almost 1,900
7:40
years ago
7:41
and cared how they looked.
7:44
Someone used these objects.
7:46
Someone walked through these rooms.
7:48
Someone stepped across heated floors,
7:51
passed through decorated spaces, met
7:53
friends, and lived an ordinary day
7:56
inside a city that would one day
7:58
disappear beneath another one.
8:01
The coins told another part of the
8:03
story.
8:04
Among the finds were coins from the time
8:06
of Emperor Postumus, who ruled in the
8:08
3rd century.
8:10
That detail matters because it suggests
8:12
this part of Roman Noviomagum may have
8:14
remained active deeper into the 3rd
8:17
century than archaeologists once
8:19
expected.
8:20
So, the discovery was not only large, it
8:23
may also change the timeline. It gives
8:26
researchers new evidence about how long
8:28
this part of the city continued to live,
8:31
trade, and function.
8:34
And there was another twist. Part of
8:36
this bathhouse had been seen before.
8:39
In 1992, during work near the old Honig
8:42
factory, a smaller section of the Roman
8:44
bath complex appeared. But at the time,
8:47
only part of the story was visible. A
8:50
hint. A corner.
8:52
A piece of something much larger. Now,
8:55
decades later, the wider excavation
8:58
revealed the scale. The earlier
9:00
discovery was not a small, isolated
9:03
find. It was part of a giant Roman
9:05
bathhouse complex hidden beneath the
9:08
city.
9:09
That is the kind of moment
9:11
archaeologists wait for. Not just
9:13
finding an object, but understanding the
9:16
shape of a lost place.
9:18
Still, the site was not perfectly
9:20
preserved. Over the centuries, some
9:22
Roman walls had been removed. Stone was
9:25
taken and reused. Later generations used
9:28
ancient ruins as building material.
9:31
A public building became a quarry. A
9:33
Roman city became a layer beneath
9:36
another city.
9:38
But, enough survived. Enough walls,
9:41
enough floors, enough heating
9:43
structures, enough streets, enough
9:46
objects, enough evidence to reveal what
9:50
had been hidden there.
9:52
And that is why the discovery is so
9:54
important. Because this was not just a
9:57
bathhouse. It was proof of scale.
10:00
Proof of wealth.
10:02
Proof that Roman Nijmegen
10:04
>> [music]
10:04
>> was larger, richer, and more complex
10:07
than the modern surface could ever show.
10:10
And now the city faces a different
10:11
question.
10:12
What happens when the past is found
10:15
directly beneath the future?
10:18
The site sits inside a modern
10:20
development area. People still need
10:22
homes. The city still has to grow. But,
10:24
a discovery like this cannot simply be
10:27
covered and forgotten.
10:29
Plans include preserving some of the
10:30
Roman walls where they are, and making
10:33
them visible beneath the new buildings.
10:35
Modern homes above, Roman walls below.
10:39
A new neighborhood built not by erasing
10:42
the past, but by showing it.
10:45
That image is what makes this story so
10:48
powerful. Because cities are not just
10:50
streets and buildings. They are layers.
10:54
One generation builds, another forgets.
10:58
Another digs. And suddenly, a world that
11:01
seemed gone comes back into view.
11:05
The Waalfront excavation began as
11:07
preparation for the future. New homes,
11:10
new streets.
11:11
A new chapter for Nijmegen.
11:14
But, under that future was another
11:16
world.
11:17
A Roman bathhouse.
11:19
A luxury neighborhood. A city near the
11:21
edge of the empire that lived with the
11:24
comfort and ambition of Rome itself.
11:27
For almost 1,900
11:29
years, the heated floors went cold. The
11:32
baths disappeared. The walls were
11:35
buried. The people became fragments.
11:38
Coins, hairpins, bronze, stone.
11:44
Then archaeologists opened the ground,
11:47
and beneath the concrete of a modern
11:49
Dutch city, they found the largest Roman
11:52
bathhouse the Netherlands had ever seen.
11:55
So, the next time you walk through a
11:56
modern neighborhood, remember Nijmegen.
12:00
Because beneath ordinary streets,
12:02
beneath factories, beneath construction
12:04
sites, there may be another world
12:07
waiting. Not empty dirt. Not forgotten
12:10
ground. A city. A public bathhouse. A
12:15
place where people once gathered,
12:17
bathed, talked, dressed, traded, and
12:21
believed their world would last.
12:25
But time covered it. Industry rose above
12:28
it. New homes were planned over it.
12:31
And then, the ground opened.
12:34
And Rome came back. If you enjoyed this
12:37
story, like the video, subscribe for
12:40
more strange discoveries, and hit the
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notification bell so you never miss the
12:44
next one. And tell us in the comments,
12:47
if an ancient Roman building was found
12:49
under your neighborhood, would you want
12:51
it preserved beneath the new city?
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