The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A layered tribute to the work of mosaicist Isaiah Zagar.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Carved, egg-shaped stone with no explanation.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

One of the few brewers in the U.S. experimenting with hop-free beers.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

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

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A giant open-air sculpture made of over 200 full-sized boats.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

The monumental steeple on Amherst College's campus has no church attached to it.

The most photographed house in Maine looks good enough to eat.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

New England's tallest light house stands on an island with a history of cannibalism and death.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

Friction between grains of sand cause a curious "singing" sound.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.