As can be expected from a centuries-old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

2300-year-old Roman road connecting the empire.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Rome’s legendary peephole vista is also a former Crusader stronghold.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Pompeii's less famous neighbor is still revealing her secrets.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

Former hunting lodge of a duke who was an avid collector of impressionist works.

The birthplace of the builder of the Statue of Liberty is now a museum dedicated to his work.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

First point in the Struve Geodetic Arc, a 19th century undertaking to measure the Earth's size and shape.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

This historic national park is covered in the stunning ruins of red rock pueblos.

A WWII museum that tries to reenact history.

Marked by the hand of the explorer Henry Morton Stanley.

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

17th century mosque for Shah Abbas' harem.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

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

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.