This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

There aren't too many operational funiculars around, but Pittsburgh has two!

The blinking light atop the iconic landmark has been sending secret messages for decades.

Ancient pueblos built into the base of a natural canyon wall.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

The lasting remains of the region's once booming cement industry.

Designed by the company that provided water to the entire community.

An American industrialist hoped this nature preserve could help save the North American bison.

America's oldest drive-in movie theater has been in continuous operation since 1934.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.