These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

The Uros people live on floating reed islands in lake Titicaca.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A countryside Romanian cemetery filled with colorful crosses bearing lyrical, ironic, or satirical rhymes.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

Imperial palace of Emperor Galerius, the Emperor behind the worst Christian persecutions during the Roman Empire.

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

A Roman monument to their own civil engineering prowess.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Stone age urban planning.

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

Religious structure known for its sculpted details.

17th century palace once a meeting place for politicians.

Romania's triumphal arch looks out over Bucharest.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

Go inside to really appreciate this 500-year-old technological masterpiece.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.