Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

The Devil’s own choice when he needs a drink in Brussels.

Lavish royal estate punctuated with heated greenhouses.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

A 20th-century picture show in 3-D.

This hidden collection of everyday objects illustrates life within communist Poland.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

This set of concrete chambers resonates according to different notes of octaves.

This old and disused water tower has received a new life as an art gallery with a piano staircase.

Spend your honeymoon where the Devil had his wedding.

Ever-growing collection of devils in art.

Man-made mineral caves house massive bat colony.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

This poignant art installation raises awareness of violence against women.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

The secret medieval communication system will whisk your words above the noise of the crowd.