This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

A snapshot of the city's fascinating voodoo culture.

This chimerical bridge/tunnel appears to dead end right into the sea.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's national museum of scientific and industrial instruments.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

A battle between nature and architecture in the Cambodian jungle.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

A shrine built to combat the bad karma of a commercial venture.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

A giant open-air sculpture made of over 200 full-sized boats.