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

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

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

This rural Australian restaurant claims to be the only restaurant in the world to be built almost entirely of sea shells.

Split's smallest church, and one of its oldest, has been reconstructed inside the city's Roman walls.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

This ancient Roman aqueduct once funneled water to Diocletian's palace.

View Japan's most historic city from a cyberpunk walkway suspended 150 feet above the ground.

This fountain has a growing (animal) population, and might also be growing in size.

This 86,000-square-foot artwork is the largest mural in the world to cover a dam.

Over a millennium ago, this site on the shores of Lake Titicaca was home to a city of more than 10,000 people.

The original attack periscope from a 1940s navy submarine towers high at this memorial site.

The longest timber-piled jetty in the world has an underwater observatory.

A colorful sculpture of an Australian symbol patrols an otherwise ordinary traffic island.

An art project designed to encourage people to explore and investigate their surroundings more closely

In a city of wooden houses, this watchtower was vital for early fire detection.

A secret hatch containing two parchments was discovered in this statue over 40 years after its installation.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This ancient market is often referred to as the oldest shopping mall in the world.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

Breathtaking and huge 430 year old maps of Italy.

This is the oldest Roman-made bridge in the city still existing in its original state.

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