The first declared National Monument in the United States.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

An extraordinary mixture of natural beauty and man-made phenomena.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

This First Nations monument is a peaceful spot with vast views of the Calgary prairie.

A mysterious taxidermy man-beast of the seven seas.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

An electrifying collection of gadgets and literature from the 16th through 20th centuries.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Plot your trip through the city on the sidewalk.

The 28-foot granite map plots the locations of 40 theaters in New York City.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Hunting trophies decorate Oregon's most unique bar-restaurant.

Home to the only outdoor municipal elevator in the United States.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Home of Howard Hughes' Spruce Goose.

A Roman-style column in Oregon hides a spiral staircase inside.

This graveyard is the eternal home of many brave pioneers who settled the Great Northwest.

A massive sea stack famous for its appearance in The Goonies.

Lighthouse-cum-columbarium where "Nor'easters" and grandma go to die.