The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A wondrous old library overlooking the nation's capital.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

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

Nature and beauty amidst pollution and industrial wreckage.

Two New York rooftops are home to the largest rooftop soil farms in the world.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

This innocent-looking townhome is actually a subway exit.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

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

Ride the subways of yesteryear.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

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

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

A giant wooden soda bottle pays homage to a distinctly British drink on the very spot where it was invented.

A tiny, hidden alleyway dedicated to the father of meteorology.