The wreckage of an old coastal trading vessel is only visible at low tide.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

A preserved Nazi labor camp now has a Holocaust museum on site and memorials to the thousands that died while imprisoned at the camp.

A rainbow-colored house promotes LGBTQ rights across the street from the Westboro Baptist Church.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

An ode to the classic piece of British street furniture.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

A monument to the man who almost killed Hitler.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

A scattered trail of street art adds a pop of color to the city's stark structures.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

This doorless 20th-century elevator doesn't stop or slow down.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

This 15th-century fortification was built to defend bunnies.

The alleged birthplace of Lady Jane Grey, who was executed at age 16 for claiming the throne of England.

A spitting ode to a German serial killer.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

Hidden dwellings in the cliffsides of North Togo used by local Moba tribes to evade 18th-century slave traders.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.