Resting place of Hollywood's immortals is also site of summer film screenings.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This "floating railway" is one of the world's oldest monorail systems.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A slice of central Asia in the middle of Berlin.

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

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Huge standing stones mark a site of megalithic mystery.

The home of Ireland's last leprechauns is officially protected by the European Union.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

Experience what life was like in Ireland during the Viking and medieval ages.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

A moody and picturesque riverside ruin overgrown with vegetation.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.