In La Ferté-Milon stand the ruins of an unfinished castle, whose façade was 200 m long and 38 m high. The first castle was erected already in the 9th century AD, but the current structure dates from 1393, when Louis of Orléans started to reconstruct a strong castle. It was cancelled in 1407, when Louis was assassinated.
The singular form of the tower walls was probably designed to resist cannons and protect the gate. The façade is preceded by a moat. On the right is a square tower of which two bare walls remain. The top of the ramparts is adorned with machicolation. Access to the town was protected by a former gate of which two towers remain. Behind the ramparts, two 160 mm cannons from 1909 sit facing towards the valley.
The Jan Hus Memorial stands at one end of Old Town Square. The huge monument depicts victorious Hussite warriors and Protestants who were forced into exile 200 years after Hus, and a young mother who symbolises national rebirth. The monument was so large that the sculptor designed and built his own villa and studio where the work could be carried out. It was unveiled in 1915 to commemorate the 500th anniversary of Jan Hus' martyrdom. The memorial was designed by Ladislav Šaloun and paid for solely by public donations.
Born in 1369, Hus became an influential religious thinker, philosopher, and reformer in Prague. He was a key predecessor to the Protestant movement of the sixteenth century. In his works he criticized religious moral decay of the Catholic Church. Accordingly, the Czech patriot Hus believed that mass should be given in the vernacular, or local language, rather than in Latin. He was inspired by the teachings of John Wycliffe.