A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

This seven-sided Romanesque chapel is regarded as the oldest building in Rovinj.

A Roman mosaic depicting a classical myth was only rediscovered after bombing during World War II.

A former church turned museum, complete with changing exhibitions.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A well-worshipped shrine to the Virgin Mary nestled inside the last of Zagreb’s historic gates.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Yugoslavia's biggest underground airport lies in ruins.

A musical instrument played by the sea.

This 135-year-old weather station studied the effects of the climate on human health.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

All of Thailand's architectural landmarks, plus some made up ones, all viewable via two-seater bicycle.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Stone age urban planning.

A giant portrait of an ancient king looms over the river.

A Roman monument to their own civil engineering prowess.

An old spa town in the mountains of Romania where, according to legend, the great hero Hercules once bathed.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

Monasteries on rock pillars, once accessible only by frayed ropes.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.