Canadian centennial project designed to gather information about UFOs.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

Protecting the dead from opportunistic body snatchers.

The most loyal of little dogs, or a Victorian era publicity stunt?

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

Breathtaking and huge 430 year old maps of Italy.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The red letters in the literary pavement leading to the library form a mysterious code.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Pyramid shaped monument with a tall tale attached.

Ancient ruins hidden underneath a modern luxury hotel.

The secret medieval communication system will whisk your words above the noise of the crowd.

A brutalist gem towering over the heart of Milan.

The fountain marks the area where hundreds of accused witches were burned at the stake.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.