This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

Rare karst landscape eroded from a flat seabed.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

The beehive-like buildings of this abandoned resort reside near the border of Mauritania and Senegal.

The world's largest ship graveyard is the product of decades of corruption.

A geological bull's-eye visible from outer space.

The largest camel market in West Africa

On a secluded beach is one of the few shipwrecks left on the shores of Mauritania.

An island made out of shells, including a cemetery.

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

An unlikely connection between a little English town and the most famous brand of American motorcycles.

This ancient oak tree sheltered accused "witches" in the 17th century.

This massive metal scallop is a tribute to an English composer who once walked across this beach.

Unusual British home built to disguise a water tower.

This melancholy headstone is the only remaining evidence of a medieval church lost to the sea.

A village on the east coast of England that has almost completely eroded into the North Sea.

A witch wreaks ruinous revenge on this ancient church with her "enchanted leg."

This 15th-century fortification was built to defend bunnies.

In the quiet village of Fulmodeston, the ruins of a medieval church remain hidden among vines and foliage.

The wreckage of an old coastal trading vessel is only visible at low tide.

"The Donut" was built as part of an expensive, ill-fated engineering endeavor.

In an isolated field near a dilapidated barn stands this chilling portrayal of the plight of the Nuba peoples of Sudan.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

The world's first successful water-powered cotton mill paved the way for the factories of the British Industrial Revolution.