The Basilica di Santa Maria del Fiore, Florence, Italy. The cathedral complex, located in Piazza del Duomo, includes the Baptistery and Giotto's Campanile. The three buildings are part of UNESCO World Heritage Site.
The Altarpiece of Veit Stoss (also St. Mary's Altar), is the largest Gothic altarpiece in the World and a national treasure of Poland. The altarpiece is located inside St. Mary's Basilica, a Catholic Church adjacent to the Main Market Square.