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

A historic bridge with a lovely acoustic anomaly.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

Radical Bookstore and Community Space.

This black shoreline is made up of exploded lava particles.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

An experimental, automotive replica of Stonehenge.

Turnip-shaped island just off the Michigan shore in Lake Huron.

35,000 grape hyacinths flow like water down a garden hill.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

No one really knows how these old hobby horses got here, but the herd keeps growing.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Native Americans built this circle of stones, which was used to predict astronomical events.

One of the most unusual geological features, recognizable from a dozen hit movies.

This super steep hike ascends 2,000 feet in less than a mile.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

Symbolic attempt to overcome the issues of life.

A hidden beach at the end of a tunnel of mangrove trees.

Limestone caves with spectacular showcase chambers.

Ancient pueblos built into the base of a natural canyon wall.