This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

A crumbling hospital from the 1850s on Roosevelt Island.

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

A Boeing mechanic and his wife leave a whimsical, stone sculptured garden as their legacy.

This former INS center is now home to a thriving community of artists, from performers to painters to architects.

Every summer West Seattle experiences a housing bloom.

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

An allegedly haunted mansion with a tragic, tawdry past.

A vinyl-lover's Shangri-La.

A beautiful final resting place for some of the noteworthy deceased.

A walk through the historic city center, under the streets of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

The legacies of two historic Black American institutions live on in this unassuming brick building.

A psychedelic tribute to one of Georgia's most unique artistic visionaries, out of place and time in the heart of Atlanta.

A provocative museum dedicated to the genre and the harsh realities that inspired its origins.

This small cemetery is all that remains of Atlanta's first Black communities.

A colorful square marks the heart of the city's LGBTQ community.

Mai Tais and Navy Grog served up in one of the original tiki bars.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

Scattered around Atlanta are little doors with big charm.

An underground magnet for ever-changing street art.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.