An extraordinary house museum and cabinet of curiosities in the heart of Florence.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

One of Jeff Koons’s largest sculptures and his first commemorative work.

Video games, body language, and postal history are all on display in this Swiss museum.

This small museum displays a collection of outsider art and scale models of past "treatments" for mental illness.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The curious underground history of keeping Paris clean.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A subterranean shelter remains intact under a busy Paris railway station.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

Metal horses galloping through a London fountain provide a link to the city's past.

Inside a London bookstore, a fireplace that once belonged to the illustrator responsible for a famous set of tarot cards.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

A much-loved local landmark pays tribute to the shipbuilding past of this area.

This unusually-named reservoir found a second life as a nature preserve.