The world's newest astronomical clock is also its most accurate.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

The unusual sculptures are believed to be powerful political symbols.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

Half of the Pulitzer Prize-winning author's ashes were buried in Armenia.

This small shrine is dedicated to the designer of the first Russian fighter jet and his brother, who became Chairman of the Presidium of the Supreme Soviet.

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

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

Despite producing just a handful of movies, a brave and lyrical filmmaker has an entire museum dedicated to him.

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

Stone age urban planning.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

A misnamed well, with a deep dark past.

The luxurious circular mansion built for a Communist leader now lies abandoned.

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

The ruins of a medieval monastery built on a perilous slope.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

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

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

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

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.