The California capital city once stood 10 feet lower than it does today.

I Street Bridge is the heaviest swinging center bridge in the United States.

The largest outdoor art gallery in the Northwest United States.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

For decades, this waterfall remained hidden because of an artificial dam.

An elegant sandstone stairway built by the WPA still connects two neighborhoods in Akron.

This former factory has deep ties to rubber production in Akron.

After covering almost 1.5 billion acres, the survey's still not finished.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Beside a busy highway, a colony of Great Blue Herons raises hundreds of offspring each year.

Yo, Adrian!

World's first "penitentiary," meant to be humane, drove men insane.

Beautiful scenery, history, science, and physics come together in this remnant of shipping lore.

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

This shallow cave got its name from copious amount of human bones found inside.

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

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

This tremendous trout welcomes visitors to a northern Michigan town with a rich fishing history.

Deep scars on the earth left by the Ice Age.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

This restaurant proudly displays bread signed by the 39th president.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.