A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This massive library holds what was once the largest book collection in the world.

Abandoned railway line circling the city of Paris.

Hidden deep within New Jersey Pine Barrens is a massive graffiti wonderland.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

This recreation of a 19th-century dime museum is full of oddities.

Home of the only civilian casualty at the Battle of Gettysburg.

This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

This massive sycamore tree has been labeled as one of the largest in the state.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

The world's brightest bioluminescent bay.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

Tubing through a cave lit with glowworms is a magical underground experience.

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

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A perfect turquoise lake colored with glacier dust.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

An abandoned desert hamlet swallowed up by sand.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.