Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

The last of its kind in the country.

The only subway station in the city that still makes use of gap fillers.

Historical figures from New York City's Catholic community reside in Midtown.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

The 28-foot granite map plots the locations of 40 theaters in New York City.

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

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

Church featuring "high Victorian gothic" architecture.

Once a flowing stream and where the USS Monitor, the world's first ironclad, was built and launched.

Neoclassical bank designed by NY architects Helmle & Huberty.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

A newspaper building that made radio history.

America's most famous piece of self-built architecture.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

A modern day curiosity cabinet.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

A cake-themed art installation tucked away in historic Chinatown.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

Because there's no place like home.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.