This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

A local dive where religious kitsch, Southern identity, and queer culture collide.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

The four tall pillars once marked the entrance of the historic Seattle church that fought for women's suffrage and civil rights.

A lush green oasis in the middle of Chicago.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This outdoor observatory offers stellar views and a scale model of our solar system.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This erect, phallic geological spire wasn't always named so domestically.

An experimental, automotive replica of Stonehenge.

The first park built over a freeway is a brutalist masterwork.

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

The inventor of the Coney Island hot dog rests in a grand mausoleum in Brooklyn.

You must take the A train... to the last active cemetery in Manhattan.

The highest rapid transit station in the world.

On this island, you suck away your garbage via an elaborate pneumatic tube system.

Once a dumping spot, now a park with a kayak launch.

Lehigh Valley barge No. 79 still gets tugged along - but now it houses a museum and unusual performances.

Brooklyn vintners creating world-class wine in a city not known for its vineyards.

Ever wanted the laymen's version of your credit card fine print?

Feral cats keeping the rodent population at bay all across Greenpoint waterfront.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.