Fodor's Expert Review Museu Termas Romanas de Chaves

Plans for an underground car park in front of the city's courthouse were canceled in 2006 when remains of the long-lost Roman baths, dating back to the 1st century AD, came to light—steam still rising from the hot spring. The therapeutic complex is one of the largest unearthed in Europe, with two large pools and seven smaller ones, and a hydraulic system that still works today. The museum opened in 2021.