Elevated freight railway turned wildly successful urban park.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

100 massive sculptures in the Hudson River Valley.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

A wondrous old library overlooking the nation's capital.

A historic neighborhood church is reborn as a psychedelic arts collective.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The United States Capitol's former columns still stand.

This free, take-a-book shop seems like a trick but isn't.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Eighteen miniature death-scene dioramas.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Final resting place of two dozen New York City harbor ships.

Featuring the the longest lift span of any vertical-lift bridge in the world.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

Originally built in 1869, this castle is currently part of Felician University's campus.

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

This 150-year-old train station and caboose have been turned into a railroad museum, enjoyed by young and old alike.