This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

The only place for a truly presidential dram.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

The resting place of a Civil War celebrity's amputated limb.

This alpine statue of Jesus in Silverton is said to protect both miners and local economies.

These towering cliffs crystalize each winter, forming sheer walls of ice that are open for climbing.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

Colorado's oldest church is now home to the largest handmade adobe labyrinth in the world.

An environmental art installation inspired by farmhouses and crop circles.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

A museum of natural history, Edwin Carter's original log cabin home and workshop houses taxidermy specimens.

This Colorado fire station has been in continuous operation for more than a century.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

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

A tiny nondenominational church harkens back to the days of the first homesteaders in the region.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

Birds with backpacks expedite film development for a rafting company on a remote Colorado river.

This nearly abandoned town was once a thriving mining community until a series of fires.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

A multiversal transit station located right below a highway interchange.

A small store filled with animal skulls and other curiosities.