An icy lake tucked among jaw-dropping alpine panoramas.

This saucy statue once caused outrage among locals.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This tiny island protects a number of rare bird species by only allowing visitors to set foot on the beach.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

Giant stone letters dedicated to the founder of Armenia's alphabet.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

A geological oddity topped with a 2,000-year-old pagan temple.

She asked for a potato cellar and over the next 23 years he gave her a network of holy caves.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

Cold war icon and onetime "hole" in the iron curtain.

A restaurant and observation deck built in a unique broadcasting antenna.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

A slice of central Asia in the middle of Berlin.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.