Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

A historic lighthouse steeped in rumors of ghost and pirate stories.

A mysterious air force base built to resemble a Long Island fishing village.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

The first commercial nuclear power plant constructed on Long Island.

An unrealized dream to wirelessly electrify the entire Earth.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

The second-largest (of only two in the world) large particle collider is the underdog of experimental physics.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.