An ancient knight and a symbol of the city's freedom.

Gargoyle head that brings good luck.

What might be the oldest living tree in London has survived fires, bombings, and estate agents.

The world's oldest optical museum is an odd collection where the exhibits look at you.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

This knockout museum lies in a sleepy corner of London.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

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

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

A statue of the original Pearly King is hidden in a church's crypt.

A plaque marks the underground site of one of London's "lost rivers."

The grounds of this Jacobean estate contain one of the oldest mulberry trees in England.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

At almost 1,000 years old, this is the oldest known door in all of Britain.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

The world's only museum devoted to the wonders of fluorescence.

This basement museum explores the art and artistry of fascism.

The former headquarters of history's oldest megacorporation.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

This unusual elevator doesn’t stop or slow down.

The attic of a four-century-old canal house hides a clandestine church.

Amsterdam's Red Light District leaves little to the imagination.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.