This 16th-century monastery has been turned into a surrealist architecture compound.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

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

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

Oliver Cromwell once seized the land under this house, which included the ruins of a medieval abbey that the owner used to build his stately home.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

On the Irish coast, 18 members of the Howard family are eternally resting in an Egyptian pyramid.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

A shrine to the missionary who first brought Islam to China.

A dreamy mausoleum honors Persia's most famous poet.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

The palace of the King of Kings, burned by Alexander the Great.

Marked by the hand of the explorer Henry Morton Stanley.

Ancient rock-cut tomb? Definitely. That of a great Median king? Unlikely.

A sprawling ancient Jewish cemetery with over 30 rock-hewn burial caves.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

This beehive tomb built for royalty sat hidden for over 3,000 years.

Three floors above a 2,000-year-old royal tomb is a rare collection of ancient porcelain pillows.

The remarkably well-preserved final resting place of a powerful ancient Thracian king.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

Space-age monument to an early 20th-century uprising.

An abandoned saucer-shaped monument in the Bulgarian mountains.