24 December 2025 The Future is the Product of the Past

In Switzerland, a Roman amphitheater was discovered during the construction of boathouse

Archaeologists from Aargau Cantonal Archaeology have announced the discovery of a Roman amphitheater in Kaiseraugst, located in the canton of Aargau, Switzerland.

The amphitheater was discovered during the construction of a new boathouse for the Basel Rowing Club on the Rhine at Kaiseraugst. ​The facility is around 50 meters long and 40 meters wide and is located in the valley of a quarry that was abandoned in Roman times.

The Castrum Rauracense is located just west of the Kaiseraugst fort. To the south of the compound, found a large gate the amphitheater complex flanked by two side entrances and the remains of another entrance on the arena western side made from large sandstone blocks.

The grandstands were made of wood, and the impression of a wooden post could still be seen on the structure. All of the evidence, including the oval, entrances, and grandstand post-placement, points to an amphitheater. It dates to late antiquity, most likely the 4th century AD, based on the building materials used, the discoveries, and the fact that it was erected in an abandoned quarry.

The amphitheater was discovered during the construction of a new boathouse for the Basel Rowing Club on the Rhine at Kaiseraugst.
The amphitheater was discovered during the construction of a new boathouse for the Basel Rowing Club on the Rhine at Kaiseraugst. Photo: Aargau Cantonal Archaeology

As a result, the monument emphasizes the prominence of the Castrum Rauracense in the fourth century AD.



📣 Our WhatsApp channel is now LIVE! Stay up-to-date with the latest news and updates, just click here to follow us on WhatsApp and never miss a thing!!



The researchers suggest that the amphitheater is the second amphitheater in the canton of Aargau after the Vindonissa (Windisch), and the third such monument found in Augusta Raurica.

Aargau Cantonal Archaeology stated: “The monument underlines the importance of the Castrum Rauracense in the 4th century AD. The fort was an important settlement with a military function on the Roman border, but also an administrative center.”

The threshold of the side entrance consists of a sandstone block.
The threshold of the side entrance consists of a sandstone block. Photo: Aargau Cantonal Archaeology

Around 44 BC, Lucius Munatius Plancus built Augusta Raurica, or Colonia Augusta Rauracorum, in the area of a native Gallic tribe known as the Rauraci. The town grew to be a thriving commercial trading center in the 2nd century AD, with a population of over 20,000 people.

The Kaiseraugst fort was an important settlement with a military function on the Roman border, but also an administrative center. The Roman city of Augusta Raurica, the archaeological site of the Roman city of Augusta Raurica, and the late antique Castrum Rauracense, form a unit. Today the site extends to both the Aargau and the Basel area.

KANTON AARGAU

Related Articles

Roman Canal and Road Uncovered in The Netherlands near UNESCO heritage sites

30 July 2021

30 July 2021

Dutch archaeologists that a canal and gravel road thought to have been built and used by the Roman military have...

A 500-year-old mural linked to an Aztec god was found under layers of paint in Mexican Church

15 October 2022

15 October 2022

A mural of an Aztec rabbit God of alcohol is not something anyone expects to see inside a church, but...

A 2000-year-old wooden figure was unearthed in a Buckinghamshire ditch

13 January 2022

13 January 2022

An extremely rare, carved wooden figure from the early Roman era has been discovered in a waterlogged ditch during work...

Birkleyn Caves is “the Place Where The World Ends”

18 January 2025

18 January 2025

The Birkleyn Caves were known as “the place where the world ends” and as “the place where the water of...

Places to Visit in Oman

6 February 2021

6 February 2021

There are many places to visit in Oman. In this article, we wanted to talk about a wonderful country that...

What If Ancient Statues Smelled Wonderful? The Surprising Secrets of Greco-Roman Sculptures

16 March 2025

16 March 2025

A new study published in the Oxford Journal of Archaeology has shed light on an often-overlooked aspect of ancient Greek...

6,000-Year-Old Settlement Was home to Europe’s first megalithic monument makers

22 February 2023

22 February 2023

Archaeologists in France unearthed the remains of a series of wooden buildings within a defensive enclosure that were built at...

A Scientific Surprise: Bering Land Bridge formed surprisingly late during last ice age

1 January 2023

1 January 2023

A new study shows that the Bering Land Bridge, the strip of land that once connected Asia to Alaska, emerged...

Treasure hunters revealed a 2,700-year-old Urartian temple In the east of Turkey

18 June 2022

18 June 2022

Treasure hunters revealed a 2,700-year-old Urartian temple A group of treasure hunters, who were digging illegally to find treasure in...

Archaeologists Discover Unique Hieroglyphic Version of Ptolemy III’s Canopus Decree

10 September 2025

10 September 2025

Archaeologists in Egypt uncover a rare and complete hieroglyphic version of the Canopus Decree of King Ptolemy III at Tell...

‘Holy Grail of shipwrecks’ worth $20 billion in treasure to be raised from seabed

10 November 2023

10 November 2023

A treasure ship described as the “holy grail of shipwrecks” will reportedly be lifted from the sea floor where it...

New Huge Viking-age boat grave discovered by Radar in Norway

12 April 2022

12 April 2022

Archaeologists have located a boat grave from the Viking Age near Øyesletta in Norway during a ground-penetrating radar (GPR) survey....

Roman-era Mixers and Millstones Made with Geology in Mind

22 September 2021

22 September 2021

A study on stone tools from an outpost of the Roman Empire has found that for ancient bakers and millers,...

New study: Humans engaged in large-scale warfare in Europe 5,000 years ago ‘1,000 years earlier than previously thought’

3 November 2023

3 November 2023

Hundreds of human remains unearthed from a burial site point to a  warfare between Stone Age people long before the...

Neolithic Shell Trumpets Reveal Iberia’s Oldest Long-Distance Communication System

3 December 2025

3 December 2025

New research reveals that Neolithic shell trumpets from Catalonia served as the earliest long-distance communication system in the Iberian Peninsula....