Palazzo-Ducale

Astraea and Diana on a chariot drawn by dogs (Diana sul carro trainato da cani) - Lorenzo Costa the Younger
1579
frescoes
The Hall of the Zodiac, Ducal Palace, Mantua

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4,000 Houses for 4,000 Followers: No. 72:

Palazzo Ducale, Venice, Italy. It also also known as the Doge’s Palace. 

It is now run as a museum. 

A majority of the palace dates from the 15th century, although some areas are earlier. Almost every major Venetian painter is represented in the palace.