More to explore:
Parc Monceau, Paris. Photo by Paul Ashton
Today, this mansion is preserved as a museum, but in its heyday, it served as George Washington's headquarters during the Revolutionary War.
Tour an ancient German castle with a centuries-old secret
Many of the home's original details remain, including 18th century stained glass, an octagonal sitting room, and a bed which is said to have been a gift from Napoleon.
It was in this prison that the notorious Marquis de Sade found himself after a party in 1772 that got a little too out of control
In the 16th century, this chateau passed from its original owners, the Miolans family, to the powerful house of Savoy, who converted the fortress into a prison.
Over 4 centuries ago, Thrumpton's occupants became entwined in a secret plot to strike a fatal blow to the English monarchy.
The Morey Mansion, Redlands, CA, 1890 (photo by Dave Toussant). An almost Russian onion dome over a round tower AND a squared tower with widow's walk.
Yard of an abandoned mansion in Florida
Abandoned mansion in Ostrowo, Poland.