A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

A lone gunner's station is all that remains of a replica Spanish Fort in Florida.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

Florida castle built with aluminum printing plates.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

When this test site was abandoned, they didn't even bother to take the rocket with them.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

Visitors to this Belgium graveyard are greeted by the grieving stone parents of the young men lost to war.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

A Cold War command center is hidden under an idyllic countryside.

A Museum of Psychiatry in a still-operating mental institution.

Christ's blood preserved in a Belgian town.

Ancient man-made caves underneath small town Belgium.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

This abandoned Belgian fortress is purposefully being left to nature.

Hiding the longest subterranean river known in the world.

Medical history with an amazing, if frighting, collection of wax diseases on display.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This ghost town in Belgium will lose its street art when it ceases to exist.

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