of the western imperial residences, sponsoring monumental buildings such as the Trier Imperial Baths and the Basilica of Constantine. With a high five-digit population in 300, Augusta Treverorum, now sometimes called Treveris, was the largest city north of the Alps and thus had the status of a global city.

The Roman buildings, which have survived to the present day, were designated as UNESCO World Heritage Roman Monuments, Cathedral and Church of Our Lady in Trier