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

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This historic hotel invented the chocolate brownie.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only presidential monument to display a late POTUS's actual casket.

The angel of death appears to weep black tears at this grave marker.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

This freshwater spring fills with 10,000 gallons of water per minute.

The "lovely red Vega" of the legendary record-settling pilot.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Strange physical sensations and optical contradictions keep visitors coming back for more.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

An ancient Egyptian temple in the middle of Madrid, Spain.

The city is full of whimsical portals to another world.

This cave holds a surprisingly colorful variety of geological oddities.