A layered tribute to the work of mosaicist Isaiah Zagar.

A tiny, unmarked beer and whiskey bar above an Ethiopian restaurant in West Philly fails to conceal live bluegrass.

An Irish Memorial commemorating those who perished due to potato blight.

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

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

The abandoned coal loading dock is a canvas for unsanctioned art.

Yo, Adrian!

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

The oldest continuously operating fish market in the United States.

Decommissioned NYC subway cars are dumped into the ocean to create this underwater wildlife habitat.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The century-old remains of an abandoned farm town in eastern Washington.

The second tallest railway trestle bridge in America.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

An obscure waterfall that looks like something out of a fantasy novel.