The world's longest continuously running show has played at this small West End theater since 1974.

This pair of unsuspecting buildings are in fact the very first modern skyscrapers in Europe.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

Traditional Danish spot where the schnapps are flowing and the smørrebrød is loaded.

Copenhagen's celebrated theme park and gardens.

Dedicated to the lives lost during a fatal stampede in the Nyamiha Station.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

Dedicated to the Father of the British Fire Service.

This risqué sculpture, based on a Hans Christian Andersen fairy tale, caused outrage 35 years after it was erected.

Four alabaster giants contemplate the tides on the shore of Denmark.

According to legend, this structure was inspired by the Tower of Babel and built in a 19th-century industrialist's yard so he could walk his dogs without leaving home.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

This inverted metropolis model is the artist's "revenge" for not being allowed to have a doll house as a kid.

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

This unassuming building produced some of the world's most famous bells.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

The Great Fire of London and the regulation of one-way streets both started in this alley.

The commemorative stone column conceals a secret laboratory.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Scattered throughout London are ancient remnants of the city's former bounding wall.

This ancient Egyptian obelisk still bears the wounds of World War I.