A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

Enormous lake at the bottom of a unique cave system.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

A hot dog stand where the heads are just as hot as the dogs.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Megachurch turned Catholic church comprised of 10,000 glass panes.

Visit the monolithic tomb of America's most famous general.

The United States Capitol's former columns still stand.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

A Beaux-Arts triumph set to become Ford's innovation campus

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

Concrete igloos standing across from what remains of the Michigan Central train depot.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

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

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

The "first cat," "first dog," and even a presidential pygmy hippo all get their due in this museum.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.