A unique opportunity to stay the night in retrofitted sections of sewer pipe.

Ride a dragon train into a world of dwarves.

These colorful French islands spent a stint bootlegging booze during American Prohibition.

This airport currywurst stand is made out of retro airplane parts.

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

This small road tunnel is the only place where you can cross beneath the Erie Canal.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

Salute the leader of the proletariat.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

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

The absurd creation is a compulsory destination for selfies in Buffalo.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Once America's longest-manned military fort, now an abandoned hulk.

New York City's smallest piece of private property.

Ride the subways of yesteryear.

Expertly restored pinball machines as far as the eye can see.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

Inside this community-run museum, visitors are treated to the history of toys and games.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

One car at a time please.

A small chapel celebrating the spiritual bond between dogs and humans.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.