England's oldest surviving hedge maze has been confusing visitors for over 300 years.

A peace symbol in Northern Ireland is among the world's largest hedge mazes.

This semi-secret storybook hedge maze is also the oldest garden in the city.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Abandoned railway line circling the city of Paris.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Two stunning 17th-century libraries and a cabinet of curiosities.

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

A musical instrument played by the sea.

This sculpture is an instrument played by the swell of the seas.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

A gallery of underwater art that can be visited by man and fish alike.

On Japan's Tashirojima Island, cats are king.

An isolated dive site teeming with cnidarians.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

A small, but award-winning beach known for its literally spotless reputation.

Nature is leading a successful mutiny on this century-old freighter.

A shady solar power system that couldn't hold up to the harsh desert conditions.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.