Built beside the small Byzantine church of St. Symeon, the church of St. George was a Orthodox Cathedral. An elegant mix of Gothic and Byzantine styles it was intended to rival its Catholic counterpart. However it was too big, with insufficient buttressing and a roof that was going to be too heavy. The pillars throughout the nave were expanded to take more weight and the roof was inserted with large upturned terracotta pots to spread the load. The church was not in existence long enough to find out if the builders may have eventually got things right. Taking the brunt of the Ottoman bombardment in 1571, evidence of which is still very evident in the remaining walls, the building stood for a little over a hundred years.
There are 15th century fresco fragments clearly visible in the three apses, though these are fading fast and there is no move to preserve them.
St. Symeon is accessible from St. George, it is a church with twin apses and is most notable for being the last resting place in Cyprus of St. Epiphanios one time Bishop of Salamis.
There are two other small churches nearby in what was once the Orthodox quarter of the city, Ayia Zoni, 14th C Byzantine, the church is intact and contains frescoes but is closed to the public. Close to it is another church of the same period, St. Nicholas (not to be confused with the catholic cathedral), a double-aisled church with two semi-circular apses and dome, otherwise a ruin.
References: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.