A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

Three bridges straddle a stream, one stacked upon the other.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

A haunting deserted hotel is a favorite with artists and photographers.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

These massive moving sand dunes have swallowed an entire village and are still on the run.

Inside this Krakow church, an explosion of psychedelic color.

In northeastern Poland, the ruins of a massive granary overlook the Narew River.

A World War II torpedo launch station abandoned off the Polish coast.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

A small granite monument marks where the borders of three countries meet.

A monument to Poland's famous alleged UFO abduction case.

The site of one of the largest prison escapes of World War II.

This open-air museum was originally a World War II testing ground for German missiles and rockets.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

People in Poland have rallied to save this unnatural desert from being reclaimed by the forest.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.