While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

The clock that sets them all.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

A collection of over 15,000 zines works to preserve DIY publishing culture.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

The largest source of fossilized insects anywhere.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

This super steep hike ascends 2,000 feet in less than a mile.

Abandoned silver mine strewn with wrecked and twisted structures.

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