The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A bright California graveyard with a decidedly dark side.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

This vacant church in the Financial District was once the heart of New York's first Syrian immigrant community.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

This Spanish shoe museum has history, has design, and has a pair of Rafael Nadal's tennies!

The site of the first battle of World War II.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

The most powerful waterfall in all of Europe.

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

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

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

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

A ghost town revived by hippies and wanderers throws its own special brand of holiday parade.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Where the embers of the Big Bang were first detected.

World's largest working waterwheel has been around for over 150 years.