The Monastery of Dormition (Kimisi Theotokou), stands the middle of the quayside in Hydra's port. It was founded around 1645, based on the plans of Venetian and Genoese architects. In 1750 an earthquake destroyed the beautiful building and it was then reconstructed a few years later. Today only the main church functions. It is a basilica with colonnades, impressive decoration and a magnificent three-storey bell-tower made from Tinos' island marble. The monk cells and the rest of the old monastery, house Hydra's Town Hall and a small Ecclesiastic Museum.