This breathtaking monastery was established by Saint Benedict himself 1,500 years ago.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

A Swiss board game museum housed inside a picture-perfect castle.

An officers prison camp believed to be impregnable by the Germans saw over 30 successful escapes.

This influential Renaissance-era library was once the haunt of kings and monks.

The eclectic observatory castle of a 19th-century astronomer and explorer.

Rare recess caves fill this unbelievably beautiful Ohio park.

Ancient barriers wrap around what was once an important stop along the Silk Road.

Light still pours into the ruins of this ancient Islamic observatory.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A secret climbing tree hides along the side of a Costa Rican road.

The zoological collection at the Hessisches Landesmuseum hosts some of the world's oldest habitat dioramas.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Science fiction's grandfather has a fittingly marvelous tomb.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

The fire inside this temple has burned for more than 1,500 years.

A magical museum of fairy tale treasures near Cyprus' buffer zone.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

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

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

Legend has it fairies gathered at the site of this medieval castle.