Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

A playground the size of a city block is a modernist monument to civic values and public housing.

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

New York's southernmost subway station is whimsically wavy.

Chefs from Tibet's Kham region offer steaming meat pies and noodle soups in this nook behind a jewelry store.

The mosaic Star of David at the front of this store hints that it's no ordinary Italian grocer.

Seriously good slices of Sicilian pizza lurk at the back of the Bronx's oldest enclosed market.

Sunset Park's Guatemalan community knows to head to the back of this bodega for a taste of home.

An everyday Jackson Heights bodega conceals a Mexican seafood paradise.

Shop while you wait for a table in this tiny Indonesian eatery within a mini-mart.

A hidden bar inside an ad agency has a deliberately misleading name, so employees can stay late under pretext of paperwork.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

This secluded ruin was once a home for exotic plants.

Behind a grungy bodega facade, a Poblano family serves rich, home-cooked meals.

Artwork tucked within the trees greets visitors with surreal sonic experiences.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

Medical history with an amazing, if frighting, collection of wax diseases on display.

Theme park featuring miniature replicas of European monuments.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

Oldest Museum of the Netherlands is a true cabinet of curiosities.