Provins is known for its medieval fortifications, such as the Tour César (the Caesar Tower) and well-preserved city walls.
The Saint Quiriace Collegiate Church is located here. The Empress Galla Placidia is said to have presented Ancona with the relics of Judas Cyriacus. However, the saint's head was situated at Provins, brought from Jerusalem by Henry I of Champagne, who built a church in this town to display it. It is still at the Saint Quiriace Collegiate Church, although construction work during the 12th century was never completed due to financial difficulties during the reign of Philippe le Bel. A dome was added in the 17th century, and the old families of Provins who lived in the upper town were called "Children of the Dome."
The police station (2010), a piece of contemporary architecture designed by Parisian architects Philippe Ameller and Jacques Dubois.
Two sets of caves underlie parts of the town. The first type were likely used to store food in the Middle Ages. The second, deeper, type contains Bronze and Iron Age graffiti.