To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Enormous small-business mecca in the Midwest, serving dozens of artists.

An ever-evolving wall of graffiti art off East Liberty Street.

The city is full of whimsical portals to another world.

A lavender labyrinth so large it’s visible on Google Earth.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This sprawling bookstore spans four floors and has more than a million books in stock.

This folk art compound was built by a fortune teller on the advice of three people from the future.

A sweet tribute to Georgia's official state vegetable, which even has its own mascot: "Yumion."

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

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

This ghost town was once a cult-like religious utopian settlement.

Largest collection of mounted dinosaur specimens in the world.

Despite its name, this route in southern Utah offers a heavenly day trip.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

Dig for your own trilobites in this goldmine of invertebrates.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

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

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

A replica that won't float away.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A house carved into a rock in the 1940s.