A small chapel celebrating the spiritual bond between dogs and humans.

This Scottish bridge seems to compel dogs to leap to their death.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

Putrefaction plateaus in Iran, where the dead were sent for decontamination before going to their final resting place.

An Austrian house of bones filled with hundreds of intricately painted skulls.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

The hottest place on the planet.

Climb right into the heart of this colorful Iceland volcano.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

Community owned and operated, this property is home to a diverse set of nudists.

A ruined hotel with an unlucky history and an eerie present.

This naturally-sourced hot spring is now home to a clothing-optional resort.

The fossilized remains of ancient California redwoods.

A natural gas leak provides a flickering flame beneath a waterfall.

The first declared National Monument in the United States.

This abandoned amusement park was built on a site with a dark history.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.