The Nové Hrady Castle was built in the first half of 13th century. It was damaged in 1573 by a gunpowder explosion and in 1590 by an earthquake. Complete demolition was considered, but only the ruins of the massive bergfried and the adjacent palace were demolished. The rest of the castle complex was repaired and newly fortified according to the design of the Italian architect Antonio Canevallo. The castle lost its function of the aristocratic residence in 1635 and in the following centuries it was used as a library, archive, administration and housing for officials. Today it is owned by the state. Since 2000, it has been open to the public and offers guided tours.
The Chapel of St. Martin is the only completely preserved Romanesque building in Vyšehrad and one of the oldest in Prague. In was built around 1100 in the eastern part of the fortified outer ward. Between 1100 and 1300, the Rotrunda was surrounded by a cemetery. The building survived the Hussite Wars and was used as the municipal prison of the Town of the Vyšehrad Hill.
During the Thirty Years’ War, it was used as gunpowder storage, from 1700 to 1750, it was renovated and reconsecrated. In 1784, the chapel was closed passed to the military management which kept using it as a warehouseand a cannon-amunition manufacturing facility. In 1841, it was meant to be demolished to give way to the construction of a new road through Vyšehrad. Eventually, only the original western entrance was walled up and replaced with a new one in the sountren side. The dilapidating Rotunda subsequently served as a shelter for the poor.