A memorial dedicated to the victims of the Columbine High School shootings.

The final resting place of a 19th-century gold prospector and convicted cannibal.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

Thomas Dambo's troll sculpture wears a crown with birdhouses on his head.

Walking by this fence is like strolling along a portal to various fictional worlds.

A larger-than-life monument to the overlooked women who braved Western expansion and broke down societal barriers.

An oil baron's wild paradise and the winner of an ill-fated air race.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

A likeness of Da Vinci's mysterious painting smiles at passersby from the side of a barn.

The largest protected conservation area in the Ozarks—a region that stretches into northern Arkansas and southern Missouri.

A historic Masonic building overlooking the Puget Sound.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

Tasked with beautifying a disused stretch of industrial land one artist filled a hole with grass.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

Nature's biggest mammal swims in landlocked Oklahoma.