Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

An unusual house built using an iso-elastic membrane.

This 600-year-old home seems to defy physics.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

The sole surviving medieval street cross in Scarborough.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

This medieval "painted village" is famous for its geometric facades.

This castle was designed to have as many windows as there are days in the year.

One man's dream has turned into this naturally growing chapel made of almost nothing but trees.

The ruins of New Zealand's largest classical-style church.

A steampunk airship "floats" above Hamilton Gardens delivering plants and compost.

These two delightful animal-shaped buildings host a visitor center and wool shop.

Three rooms of bones, curios, and one artist's collection of natural artifacts create this intriguing museum.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

One of the world's largest pianos is displayed in the workshop of the man who built it as a teenager.

One of the world's steepest streets seems to have houses sliding down it.