A very classy 1920s-era bar right in Grand Central Station.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Try not to get slimed in Tribeca.

Phil Mortillaro uses keys to bring art back to the Village.

New York City's smallest piece of private property.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Magical-looking cottages that inspired one of the most famous animated films ever.

The final resting place of a space program monolith.

Where the leftovers of love affairs can live on forever.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

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

Resting place of Hollywood's immortals is also site of summer film screenings.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A terrific purveyor of natural history objects and curios.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The home of the first American-born saint is one of the only curved buildings in New York.