This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

A haunting monument dedicated to the Royal Naval Air Service and the Fleet Air Arm.

A living memorial to the trees London lost during the Great Storm of 1987.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

The bronze uniforms commemorate the vital role of women during World War II.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A naturally mummified 2,000-year-old man.

London's smallest police station is barely the size of a phone booth.

Eighty million natural history specimens call this gargantuan museum home.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

An icon of International Style architecture on the outskirts of Rotterdam.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

A huge teapot illuminates a home for the elderly.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

Atop this former dutch railway office sits an interstellar work of art.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.