The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

Structure built from the skulls of vanquished foes.

A Red Cross memorial museum at the site of the Niš concentration camp that operated for four eventful years during World War II.

On a site with a long military history, a 1980s shelter.

Take a walk in a recreation of ancient Rome.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

Three stone bridges straddling the River Gowy form part of the medieval road from London to Holyhead—despite a common nickname, they're not Roman.

This haunting stone chasm is a hotbed of mossy rock and English legend.

You can crawl inside this atmospheric 5,000-year-old tomb.

Inside this magnificent 12th-century church is one of the finest carved wagon-roofs in all of England.

This hilarious English intersection is an automotive whirlpool.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

The designer of this railway tunnel added a birthday present for himself.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This monumental work of art symbolizes the coming together of a previously divided city.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Colorful murals by Jean Cocteau hide within this peaceful London sanctuary.

William Smith's iconic "map that changed the world" is hidden behind a curtain in the Geological Society building.

Museum about life, death, and cannibalism in the Stone Age.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

This trail follows unique stone railroad tracks and a historic waterway to the south coast of Devon.