A relic of World War I that now exist as a piece of public art.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Inside this Krakow church, an explosion of psychedelic color.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

The final resting place of one of the brightest physicists of the 20th century.

A Baroque mansion with ties to legendary magicians and alchemists.

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

A diminutive statue that was inspired by the sculptor's own daughter.

A monument dedicated to the civil uprisings that took place during the Pots and Pans Revolution.

This sculpture presents commentary on a life in pursuit of profits.

One of the oldest bridges in Norwich was used during the English witch trials and is said to be haunted.

A circle made up of 19 boulders has stood in Scotland's Bladnoch Valley for some 4,000 years.

These markers are used to document elevation changes around the famed dam.

This tiny chapel withstood a massive mudslide and flash flood.

Dating back to the 500s, these stones include some of the oldest Christian memorials in Scotland.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

Secret refuge and museum of the Duke of Florence.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

Drink wine handed out through a window as part of an age-old tradition.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.