royal palace in Naples, Italy which is now used as...

museum in Germany...

former royal summer palace near Madrid...

was built as pleasure palace in the 1820s for the...

royal palace in Södertälje Municipality, Sweden...

royal residence at Windsor in Berkshire, England, UK...

royal palace in Hallstahammar Municipality, Sweden...

Sassanid-era Persian monument in modern Iraq...

royal palace in Solna Municipality, Sweden...

royal palace in Sigtuna Municipality, Sweden...

official London residence and principal workplace of the British monarch...

palace and museum in Marrakesh, Morocco...

museum in Zanzibar...

old part of Schleissheim Palace...

building in Madrid, Spain...

castle residency in Warsaw, Poland...

royal palace in Ekerö Municipality, Sweden...

palace in Vienna, Austria...

historic castle in Mannheim, Germany...

building in Petrópolis, Brazil...

castle in Thuringia, Germany...

national heritage site...

Royal palace of Spain...

building in Vila Viçosa, Évora District, Portugal...

museum of sculpture and painting in Pisa...

official residence of the Spanish Royal Family...

palace in Versailles, France and location of the Museum of...

former city hall (1652-1800), made a palace and public museum...

official residence of the Swedish monarch...

castle and museum of the Old City of Segovia (Spain),...

ancient Roman amphitheatre, a landmark of Rome, Italy...

cultural heritage monument D-6-63-000-454 (0) in Würzburg, Bavaria...

building in Billund, Denmark...

city in the region of Franconia, Northern Bavaria, Germany...

island in Spain...

museum in Germany...

Model railway and miniature airport attraction in Hamburg, Germany...

Local history museum in Kollum, Friesland, the Netherlands...

museum in the town of Clervaux in Clervaux Castle...

museum collection in the city of St. Gallen, Switzerland...

human settlement in Agerola, Italy...

museum in Saint-Cloud, France...

museum in Mainz, Germany...

museum and former guildhall in Antwerp, Belgium...

Castle in Darmstadt, Germany...

village in Teltow-Fläming district, Brandenburg state, Germany...

human settlement...

human settlement...

populated island in the Shetland Islands, Scotland, UK...

museum in Cairo, Egypt...

town and municipality in Navarre, Spain...

island...

French commune and town in Loir-et-Cher, Centre-Val de Loire...

city...

barracks in Sydney, New South Wales, Australia...

town in Wiltshire, England, UK...

town in Subcarpathian Voivodeship, Poland...

museum dedicated to Gustav Vigeland's art and life...

human settlement in Germany...

ancient city in the North of Morocco...

village and community in Conwy, Wales, UK...

remarkable tree in Estonia; thickest and oldest tree in Estonia...

castle in Austria...

postal Museum...