Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A stately palace has been converted into the world's largest cannabis museum.

The hidden lair of an alchemist rediscovered in a 2002 flood.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

This eclectic collection documents the wild legacies of "America's Wickedest Street."

A technicolor place of worship for Elevationists.

This Chinese-style quartz sundial was saved in its final hour.