At this time, the more ancient roman baths at the today "Viehmarkt" of Trier had probably become to small for the growing population of the town. When they were built, the Barbara baths had a surface of 42.500 m2 (172 x 240 m). With these dimensions, the Barbara baths were the second largest baths of the Roman Empire; only the Trajan baths in Rome were larger!
The size of the area led to several uses in the post-roman times. Besides the utilisation as a quarry, some remains of buildings had been found. The name of the baths originates in the name of the parish church of Saint Barbara.
Since 1986, they are part of the UNESCO World Heritage, together with the other roman monuments of Trier.
Today, the Barbara baths are open for visitors. Next to explanatory boards, you can visit a reconstructed under floor heating and underground galleries.
www.trier-info.de/barbarathermen-info