The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

The tiniest little stage in New York.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

A notorious punk house turned co-op.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

Visit the site of a subway powered by nothing more than air--and lots of it.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

NYC's legendary underground network for bovine transportation.

A bit of retro transportation flair preserved in the world's largest department store.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

All of Chicago's wood-paved streets are long gone but two alleys remain.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This shop for all your super spy needs hides an educational secret.

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

The remnants of sheer survival in Dublin's monastery district.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

Georgia's first brewery is also one of its oldest surviving buildings.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

This angular brutalist playground turns playtime into modern art time.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.