This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

An ancient knight and a symbol of the city's freedom.

This Croatian island is for sale but no one is buying due to the dozens of accused Nazi sympathizers who were massacred there after WWII.

Gargoyle head that brings good luck.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A tiny church on a man-made island in the Adriatic.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

A curious cave church carved into the face of a cliff.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A collection of maritime artifacts from the world's first volunteer life brigade.

One of the U.K's earliest public water supplies is within the "plague village."

These upturned herring boats make nifty storage sheds for fishing goods.

The western face was supposedly left clock-less to snub the Welsh.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

The world's first successful water-powered cotton mill paved the way for the factories of the British Industrial Revolution.

The tradition of using flowers to decorate wells is once again thriving in England.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

One of the highest Roman forts in Britain is set amid dramatic scenery on a notoriously difficult road.