This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Steep canyon walls hide a forested oasis in the West Texas desert.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Home to the longest wooden escalators in the world.

New fungal and bacterial species call this deadly lake home.

A sprawling museum located on the former site of the Orphan Girl Mine.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

An indigenous ethnobotanist runs this brunch spot celebrating Australia’s native flavors.

The first steel dam in the world and the only one still functional in the United States.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

This icon of the Atomic Age now lays dormant.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Pittsburgh's literal underground railroad.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

The Master of Magnetism dominates the walls of a scrap metal yard to keep graffiti artists at bay.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

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

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.