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

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

A dazzling display of red rocks weathered into spires and hoodoos.

A tree full of wishes and footwear.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Toxic waste disaster that founded the Superfund program.

The seat of Buffalo government is a gorgeous Art Deco palace.

A 19th-century architectural wonder designed by the "father of the skyscraper."

Buffalo's abandoned concrete grain elevators are getting a second life.

Considered by many to be one of the most dangerous highways in Alaska.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

Clean, cold drinking water flows from a nondescript pipe in a roadside rock face.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

Permanent exhibit reminds visitors of the Exxon Valdez.

These markers are used to document elevation changes around the famed dam.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.