A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

An exquisite grouping of structures made from 10 tons of invasive saplings.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

The ornate miniature mansions were built for Istanbul's feathered residents.

The deserted pirate-themed restaurant still entices explorers.

One part antique store, one part curiosities hodge-podge.

Foragers once flocked to this big beautiful bayou to hunt for pearls.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

This lurid German fountain plots the sad course of marriage from dating to death.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

Sit at the "Disney table,” where Walt and his team of "imagineers" once dined on the regular.

This giant disembodied horse head seems to balance impossibly on its nose.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

These Australian rock formations look like Martian beehives that have grown up out of the landscape.

A large circus museum with summer performances.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.