Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

Living trees form the structure of an open-air palace.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

The patron saint of spinsters grasps a container of dried blood.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

A striking 12th-century-style castle built on the edge of a cliff.

Ruins of a German Castle on top of a towering stone pillar.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The fairy tale castle of the "fairy-tale king."

The remains of a 13th-century Franciscan friary have survived multiple attempts at destruction, most recently in 1921.

This center tells the story of one of the most famous battles in Irish history.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

The largest stone circle in Ireland.

A stunning medieval castle owned and restored by the famed actor Jeremy Irons.

The symbolic center of Ireland, this summit also offers panoramic views of the countryside.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

This recreation of a 19th-century dime museum is full of oddities.

Arlington Cemetery exhibit dedicated to death and grieving.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

This iconic Lancaster everyman has been reading the same story since 1980.