Salt cured mummies continue to turn up in this Iranian mine.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A beautiful maze marks where three countries meet.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

A beautifully eclectic mix of architectural styles.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This statue of a goat in boots is meant to represent the European Union.

A museum dedicated to the former country.

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

An idyllic traditional timber village on a picturesque hill was built for a film.

A hidden stream deep in the mountains creates one of the largest tufa waterfalls in Serbia.

Beautifully carved tombstones fill this unmarked graveyard, uniquely situated near the village's famous stone wine cellars.

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

This fresco-covered medieval monastery hangs from the side of a steep cliff.

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

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

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

Structure built from the skulls of vanquished foes.

This memorial to local World War II heroes is slowly being reclaimed by nature.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

A curious cave church carved into the face of a cliff.