When waves crash onto this section of beach, the rocks sing a song.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This massive roadside mascot was the first version of the giant to illustrate his butt.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A toweringly silly piece of modern art has been delighting locals since the 1980s.

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

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

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

What remains of the summer palace of King Kamehameha III.

A vertically floating hemlock controls the waves and weather at Crater Lake.

Even in death, he's still your huckleberry.

Few other hotels can rival the grandeur of the Castle in the Rockies.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

The first American department store, and home to the largest operating musical instrument in the world.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

This cave holds a surprisingly colorful variety of geological oddities.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

The crumbling remains of a 19th century fortess.