This fortified town dating back to the 1400s is often described as an open-air museum and is a protected National Monument of Bosnia and Herzegovina.

This striking sculpture of a supermodel in a yoga pose challenges traditional public art.

At this concrete bunker on the Trondheim fjord, secrets lie above and below the water's surface.

Located within military grounds, this one-legged bronze soldier poignantly showcases the human cost of war.

A bold and controversial statue of a Christmas icon, blending adult undertones with playful humor, stands year-round in a traffic circle.

A spectacular Neoclassical palace is home more than 15,000 artifacts and works of art.

The castle used by the Danish Royal Family as a hunting retreat.

The local club's soccer field is practically surrounded by UNESCO-protected monuments.

This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.

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

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

On a tiny island in northwestern Norway, one of the country's few remaining original stave churches.

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

A study of Fascist era Art Deco design in Italy.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Every inch of this chapel is covered in craftsmanship from across the world.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Thousands of well-dressed mummies below a monastery.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

According to Greek mythology, this natural spring is the home of a freshwater nymph.

Italian cave with exceptional acoustics and an unsavory history.

A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.