This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

This former medical factory gives home to cutting edge arts in the shadow of a gas works.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Eighty million natural history specimens call this gargantuan museum home.

Catacombs turned marketplace.

The curios of pharmacist and collector Henry Wellcome.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

An unusual round church in London with a Templar past.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

An homage to everyone's favorite prehistoric cartoon family.

An exotic wildlife habitat right off The Strip.

This futuristic German television spire is actually the world's largest digital clock.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Beneath the city of Lourdes, France is a massive, concrete church.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.