This frequently-photographed waterfall takes only a short hike to visit.

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

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

Paris' linguistic guide to the international language of, yes, love.

An underwater city for the dead.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

A rare view of a preserved Victorian science museum.

A dilapidated dock tells the story of Titanic's missed arrival.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

The rocks in this arid basin leave trails of movement behind them.

Started as a kitchen garden, now the second largest botanical garden in the world.

A beautiful geyser under environmental threat.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Mysterious rocks that ring musically when struck.

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

Home of an evil witch famous within southern folklore.

Shop selling 500 flavors of soda has something for everyone.

Enormous lake at the bottom of a unique cave system.

Hot springs monkey spa in the middle of Hell's Valley.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

Try not to get slimed in Tribeca.