An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

A lush oasis full of vibrant plants and striking geometric displays.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The stunning interior of this Gothic church is covered in ornate gold details.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The ruins of an abandoned church loom within a picturesque Ukranian village.

When you've got to go, you've got to go.

340-foot statue built to honour the Heroes of the Soviet Union.

The largest catacomb system in the world.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This attraction was abandoned after the Chernobyl disaster.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

This enormous abandoned prison was once dubbed the "Bastille of Romania."

One of the most controversial statues in Romania is an emperor with no clothes.

A spooky spot along the road where things mysteriously seem to move uphill by themselves.

Romania's triumphal arch looks out over Bucharest.

A medieval church built up to defend its village.