Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

A Viking-themed bar in a canal town for those retreating from the hustle and bustle of Shanghai.

An enormous illuminated figure dances on the Las Vegas strip.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

Rising from the sea like a stone monster.

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

Christ's blood preserved in a Belgian town.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

Come for the flowers, stay for the bats!

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

The most playful of the life-sized statues that make up Singapore's "People of the River."

New Preston and Kent, Connecticut - where Friday the 13th, Part 2 was filmed.

One extremely determined man's homemade universe.

The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

A monument in a town outside of Boston celebrates the visits of Edgar Allan Poe.

Underground monastery and fortress.

A seasonal movie monster museum featuring wax creations by a relative of one of the original Universal Studios monsters.

Final resting place of one of the classic authors of horror literature.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.