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Patio de las Doncellas in Alcazar Palace, Seville, Spain ?

The Pena National Palace seen from Lisbon ?

Monastery of San Lorenzo de El Escorial ?

Official Residence of the President of the French Republic ?

Red-brick Elisabeth-Anna-Palais in Oldenburg ?

Who ordered Topkapi Palace ?

Home of the Emperor in Beijing ?

Palais Royal, a royal residence in Paris?

The highlight of the Alhambra ?

Where is The Kremlin located ?

Where is Peterhof (Petrodvorets) ?