Four abandoned towers hidden above the Douglas fir forest in Washington.

A small Richmond island dotted with the remnants of hundreds of years of history.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

Collection of vintage trailers double as hotel rooms.

This massive home was constructed by one of the greatest conservationists in Colorado history.

A prehistoric rock shelter that's literally in someone's backyard.

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

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

A building that was once a general store, a speakeasy, and a newspaper office now holds a small gallery filled with New Orleans photography.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

Dedicated to the history of the health sciences.

Florida castle built with aluminum printing plates.

Built in 1927, this pink stucco hotel once hosted stars of Hollywood’s silent movie era. Now it's being brought back to life.

This massive vault of comedic history is no joke.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

This general store is stocked with memorabilia from the 1930s onward—almost none of it for sale.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

Continuing the tradition of the dime museum in style.

Hidden in the plaza next to a pizza shop is an amazing little oddities shop.

These former theme park figures have a new lease on life outside a water plant-turned-restaurant.