Kyiv's most famous historical architecture complexes are the St. Sophia Cathedral and the Kyiv Pechersk Lavra (Monastery of the Caves), which are recognized by UNESCO as a World Heritage Site. Noteworthy historical architectural landmarks also include the Mariinskyi Palace (designed and constructed from 1745 to 1752, then reconstructed in 1870), several Orthodox churches such as St. Michael's Cathedral, St. Andrew's, St. Vladimir's, the reconstructed Golden Gate and others.