Caserta Royal Palace | Italy

Postcard
Caserta Royal Palace, with 5 floors, 1,200 rooms, 235,000 m2 floor space and a volume of 2 million m³ one of the largest of its kind. According to Unesco "It is an eloquent expression of the Enlightenment in material form, integrated into, rather than imposed on, its natural setting".
Yes, think about that for a while.

The Royal Palace at Caserta is part of UNESCO world Heritage site "18th-Century Royal Palace at Caserta with the Park, the Aqueduct of Vanvitelli, and the San Leucio Complex".