An unlikely neo-Gothic castle in the Paraguayan countryside.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

No one knows who built this strange cave of worship or exactly why.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

A giant portrait of an ancient king looms over the river.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

A medieval church built up to defend its village.

This Romanian village may have been drowned, but it is long from forgotten.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

This small museum in a 17th-century building honors three iconic Scottish writers.

This lone tower casts an outstretched shadow over the site of a once-wealthy Knights Templar preceptory.

Legend says this demonic carving inside a medieval cathedral was one of Satan's minions.

This theme park presents 5,000 years of Shanghai history and includes a "sunken" exhibition hall.

This enchanting natural park is a magical example of a temperate rainforest in Europe.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

During an annual Catholic feast in this tiny Spanish village, men dressed as devils leap over rows of babies to cleanse them of sin.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

This erect, phallic geological spire wasn't always named so domestically.

An idle pastime becomes a record holder in Boys Town, Nebraska.

An experimental, automotive replica of Stonehenge.

A delightful museum devoted to the history of books.