The ruins – an oval shaped wall of 50 metres in length and 40 metres width – dates back to the 4th century and were discovered during construction works last month, the archeological serviceExternal link of canton Aargau said.
The site along the Rhine river has been known as the Augusta Raurica garrison at the northern border of the Roman Empire.
The town, now called Kaiseraugst, is some 11km east of the city of Basel and is close to the border with Germany.
The stones and imprints of wooden posts are part of an amphitheatre, which was situated next to a quarry and a fort, the archeological service announced on Wednesday.
It is the youngest Roman amphitheatre found so far, according to experts.
It is the third such arena in Augusta Raurica, one of the most important Roman sites in Switzerland.
“The monument highlights the importance of the garrison during the early centuries AD,” a statement said.
So far, eight ancient Roman amphitheatres have been found in Switzerland. It’s believed that they were used mainly for gladiator combats, chariot races and animal slaying.
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The capital of the Helvetians
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What is today the town of Avenches, in canton Vaud, used to be a Roman metropolis. It was known as Aventicum.
What factors should be taken into account when inheriting Swiss citizenship abroad?
Should there be a limit to the passing on of Swiss citizenship? Or is the current practice too strict and it should still be possible to register after the age of 25?
Is your place of origin, your Heimatort, important to you?
Every Swiss citizen has a Heimatort, a place of origin, but many have never visited theirs. What’s your relationship with your Heimatort? What does it mean to you?
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The new regulation targets plants developed through new breeding technologies that don’t include transgenic genetic material.
WHO faces $1.8 billion budget shortfall amid US withdrawal
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The 2026-2027 budget for the Geneva-based organisation has been reduced to $4.2 billion, on top of this year’s $600 million shortfall.
Swiss government proposes lifting nuclear power ban
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While the centre-right and the energy sector are welcoming the Swiss government’s counter-proposal, the Greens are threatening to call a referendum.
Switzerland provisionally signs agreement on EU programmes
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The agreement on EU programmes covers Switzerland’s involvement in initiatives like Horizon Europe, Euratom, ITER, Digital Europe, Erasmus+, and EU4Health.
Record-breaking winter for Swiss tourism driven by foreign visitors
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A survey by Switzerland Tourism suggests this winter has outdone last season's record, largely thanks to foreign visitors and favourable weather conditions.
Swiss study predicts rise in global antibiotic use in farming
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Global antibiotic use in livestock farming could rise by 2040, says a study by FAO and the University of Zurich. Switzerland expects minimal change.
Initiative calls for 36-week parental leave in Switzerland
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The initiative proposes 18 weeks of non-transferable leave per parent to be taken alternately within ten years of implementation.
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Basel scientists attempt to recreate Roman fridge
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Kaiseraugst, in canton Aargau, is home to ruins of the Ancient Roman city of Augusta RauricaExternal link. The Romans are known to have used such holes to store fruit, vegetables, oysters, cheese and other products that go off. In winter, they would fill them with snow and ice and cover them with straw. This is…
Switzerland’s hidden treasure trove of Roman mosaics
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The small town of Orbe is home to the largest and most beautiful collection of Roman mosaics north of the Alps. Where are the visitors?
Intricate Roman mosaic discovered in western Switzerland
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A detailed Roman mosaic depicting two birds perched on a vessel has been uncovered during routine water pipe maintenance in canton Vaud.
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Rome’s ruins tell us about wars and destruction, but also about how from history emerged an extraordinary, fascinating and beautiful city.
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Thousands turned out to watch bare-foot fighters dressed in traditional gladiator gear battle it out at the weekend’s Roman Festival in the ancient settlement of Augusta Raurica near Basel. A colourful procession kicked off the first contest on Sunday. A battalion of legionnaires in armour, followed by dancers and musicians in robes and togas, trod…
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If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.