This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

Sofia's legislative center is continuously reinventing itself.

This historic black and white monastery is one of Bulgaria's architectural jewels.

"Holy Wisdom" overlooks the city that became its namesake.

This living labyrinth made entirely of thorns is filled with art.

The floor of the oldest surviving synagogue in the Americas is entirely covered in sand.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

A musical instrument played by the sea.

Single runway interrupted by a busy road that cuts across its middle.

Come for the flowers, stay for the bats!

The final resting place for the remains of 143 Habsburg royalty.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

The most visited, and possibly most controversial, museum in Germany.

Lady Liberty's original designer installed a little clone in this French fountain.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Giant topiary dog once played a role in a terrorist bomb plot.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

A monument celebrating the idea of reaching inaccessible places.

This stunning concert hall has become a symbol of Iceland's national recovery.

Canada’s surprisingly controversial monument to Dwight Eisenhower.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Mesoamerican monoliths and zoomorphic stones covered in royal visages, ancient mythology, and grand celestial events.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.