"All Mountains - All The Time."

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

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

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

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

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.