Slyly buy a shake in the Parker Meridien lobby.

Legendary frontman of the Doors looms in this giant mural by famed Venice muralist, Rip Cronk.

The so-called "Statue of Liberty of Los Angeles" is on a one mutant mission to keep L.A. weird.

The site of a classic series of Laurel and Hardy pratfalls.

Rainbow-hued local gem in Venice.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The oldest surviving synagogue in New York City is now a soaring art space.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

An unassuming secret door once led to a legendary watering hole.

Peek through the gates at this oasis from the city, full of Old English charm.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

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

Try not to get slimed in Tribeca.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.