A display of magnificent stained glass windows is the first exhibit of its kind.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

The humble horn finally finds a place in the sun.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

This vast kitty-themed collection illustrates the history of human-cat interaction.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Hundreds of antique bank vault locks on display in New York City.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Cryptic messages embedded in the New York City sidewalk.

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

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A dilapidated dock tells the story of Titanic’s missed arrival.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

Less a museum than a bizarre fantasy world created by artists and engineers.

This historic train station has been converted to a locomotive themed hotel.