Punta della Dogana is an art museum in Venice's old customs building, the Dogana da Mar. It also refers to the triangular area of Venice where the Grand Canal meets the Giudecca Canal, and its buildings: Santa Maria della Salute, Patriarchal Seminary and Dogana da Mar at the triangle's tip. Punta della Dogana is located between the Grand and Giudecca Canals. Adjacent to each other are the Dogana da Mar, Patriarchal Seminary, and Santa Maria della Salute. The point was used for docking and customs as early as the beginning of the 15th century. The temporary structures built to store merchandise and customs workers were replaced by the Punta della Dogana, whose construction began in 1677.