This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

A tunnel with windows, so you don't miss out on the impressive views.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Berlin's old airport.

World's largest Christmas store.

Wisconsin's most celebrated export gets the royal treatment on I-94.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A surreal statue honoring Prague's favorite literary son.

Pilgrimage site for star-crossed lovers.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Portlandia is the second-largest copper repoussé statue in the United States.

The highest point in Washington state is a volcano covered in glaciers.

An overlooked memorial honoring the local Washington residents who died in World War I.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Erotic art covers the walls of the largest ancient pleasure palace.

Elvis's own personal tropical hideaway.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

A lush green oasis in the middle of Chicago.