This massive monument honors the first human in space.

Peak named for an old man who liked to run in the nude.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

The Ozarks' strangest dwelling.

A peaceful place in the woods where everything is a work in progress.

The first singer to cut a country music record is buried in a small graveyard in Atlanta, Georgia.

A layered tribute to the work of mosaicist Isaiah Zagar.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

A preserved college lock-up that recalls a clubhouse approach to discipline.

One Austrian's singular yard is now preserved as a folk art garden of concrete wonders.

A bizarre house filled with an astounding array of collections.

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

This small-town park in southern Illinois has a 1,000,000-gallon swimming pool and a 100,000-barrel oil well.

This abandoned Brutalist treehouse is a hidden architectural relic.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

Several of these strange cone-shaped bunkers can still be seen around the former Nazi headquarters.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

Every part of this unusual home is built into the sandstone rock.

Walk through Czech history in Prague's largest graveyard.

This artificial cave looks like something out of a fairytale.