Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

Dedicated to a brave pooch who fought a tiger to save a young child.

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

This ice cream parlor serves scoops of flavors like rakia, medlar, and poppy seed.

A museum dedicated to the former country.

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

Tucked in an urban forest, this restaurant specializes in homemade, healing rakijas.

A pair of connected skyscrapers form this symbolic gateway.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

A mosaic monument that commemorates the historical struggles of the people of North Macedonia.

This elegant monument to those who fought against fascism is inspired by the shape of the poppy flower.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

Artists made this mosque into a marvel of Ottoman baroque architecture.

Depending on the region's rainfall, this church may be partially submerged.

Stone pillars and a petrified wedding party in the hills of North Macedonia.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

Space-age monument to an early 20th-century uprising.

The museum chronicling a treasure hunter's dream, fulfilled.

Where old school Polish Chicago and young hipster Chicago live side by side.

Where Cusack's record store from the film "High Fidelity" was located.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The 606 is a decade in the making.

These pretty kitties killed and ate as many as 135 railway workers.