Trier Amphitheater - Credit: Wikimedia Commons
The Trier Amphitheater is a Roman amphitheater in Trier, Germany. It is designated as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier UNESCO World Heritage Site as a testimony to the importance of Trier as a major Roman city north of the Alps. Read more on Wikipedia
Source: en.wikipedia.org