A beautiful 62-acre Catholic shrine and botanical garden.

What is it about mushrooms that makes people wish they lived inside of them?

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

An abandoned relic of the city's failed experiment with below ground transit.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

Driftwood dinosaurs lurk within trees covered in a rainbow array of avian abodes.

An industrial site turned into Hungary's most cherished natural wonder.

This ancient burial mound is accessed by an impressive Greek-built archway.

World's largest crossword puzzle spans the side of a towerblock, its clues scattered throughout the city.

Submerged busts of communist and socialist figures from the USSR.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The largest catacomb system in the world.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

Bizarre dirt trail winds a narrow path above the tree line.

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

A part of the world's largest marsh seems to be growing bright red Martian grass.

A vast, otherworldly collection of Buddhist stupas.

A Buddha-filled cave that is named after a giant monster spider.

The oldest teak bridge in the world is made from the remains of a royal palace.

A grand imperial capital left to fall into magnificent ruin.

Gigantic unfinished stupa and the world's 2nd largest bell.