Tower Balhan

The only remnant of the Fort of Saint-Jacques, former residence of the Counts of Champagne. Declared a historical monument in 1926, it was built in 1480 by Jean Balhan, and inside there is a spiral staircase, a surveillance room and a small chapel. Its tower stands at 33m high, making it visible from anywhere in the city and is topped by an octagonal roof, with two pyramids on the west side and two round towers on the east with hexagonal ceilings.