A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

In the Compton Hill Reservoir Park sits a statue whose lack of clothing caused a scandal for the group that commissioned it.

A sculpture of a giant man escaping from the depths of the Earth.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

One of the smallest towns in the United States.

Miraculous tree that seems to sprout out of solid rock.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

The largest island on the great salt lake is home to curious creatures and strange stories.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

This great stone guardian of the forest is a relic from the land's volatile volcanic past.

Atop an active stratovolcano, two lakes separated by a narrow strip of land.

Rushing water plunges over a 100-foot drop created by an ancient lava flow at this majestic waterfall.

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

Formerly secret, precariously perched boulders.

The original span of a high bridge across the deep Crooked River Gorge has been preserved for pedestrian use.

The world's last remaining store of its kind.

A 36-ton remnant of the last Ice Age now resides amid picturesque vineyards.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

An institution that preserves the history of institutionalization.

Massive crater in central Oregon.

The longest continuous lava tube in Oregon.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.