Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Deep scars on the earth left by the Ice Age.

Take a drunken tour inside the world's largest known geode.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

The seat of Buffalo government is a gorgeous Art Deco palace.

The absurd creation is a compulsory destination for selfies in Buffalo.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

Home to a 26-foot-tall statue of an American icon.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

A true roadside icon standing on the same plains that the herds once roamed.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The largest earthwork effigy in the world.

Beautiful scenery, history, science, and physics come together in this remnant of shipping lore.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.