Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

The largest tiger reserve in India is a vast expanse dotted with ancient ruins of Nagarjuna Viswa Vidyalayam.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

The first and only carousel with a lineup entirely of insects.

The floor of the oldest surviving synagogue in the Americas is entirely covered in sand.

A turquoise lake within a volcanic crater.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.

A crumbling hospital from the 1850s on Roosevelt Island.

An emerald-green grotto just a short trip from Austin.

This Ecuadorian cemetery is home to a jaw-dropping topiary wonderland.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

Have fun at the world's first Buddhist waterslide park.

This nightmarish children's plaything was left grotesque to help kids conquer their fear.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

A Catholicism-themed restaurant where sacrilege is on the menu.

A Buddhist temple to honor insects that died for science.

A hand-built folk art installation covered with messages of God's love.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

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

An Australian lake whose pink hue defies scientific explanation.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.