These unusual rooms on wheels are holdovers from the 1960s.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

An abandoned saucer-shaped monument in the Bulgarian mountains.

The ruins of a medieval monastery named after a type of tree.

A stunning Victorian abbey and walled garden on a lakefront.

The world's only flying boat museum honors a small Irish village that sent 20th-century aviation to new heights.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

Behemoth, cannon-like telescope operated by generations of Irish earls.

The world's tallest box hedge is found in a delightful garden.

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

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

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

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

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.