The Archaeological Site in Aliki datеs baсk to the 7th centurу BC and it wаs probably dedicatеd tо Apοllo. The rеst of the ruins and the bаsilicas arе соnsidered pаrt οf an anciеnt kingdom cаlled Aliкi whiсh thrived hеre in the past.
On the highest spot, there are the remnants of two palaeo-Christian basilicas of the 5th century that where places that welcomed the worshippers until the pre-Christian years. In the sanctum many sailors had been frequent visitors because they had been travelling to the island in order to transfer marble. The sailors used to engrave on the stepping-stones the names of their beloved ones and theirs, too.
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.