"Medieval" castle built in the mid-20th century by one family.

A unique two-level bridge designed to honor a king.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Humble beginnings for one of the world's most famous scientists.

The “world’s smallest cathedral” is a remnant of one of Croatia’s medieval royal towns.

A musical instrument played by the sea.

This fountain has a growing (animal) population, and might also be growing in size.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

This ancient Roman aqueduct once funneled water to Diocletian's palace.

This fortified town dating back to the 1400s is often described as an open-air museum and is a protected National Monument of Bosnia and Herzegovina.

An apparition of Virgin Mary in Herzegovina.

Statues of two of Srem's most well-known animals.

A series of metal trumpets in the heart of Ruma represents the seven Vojvodina People's Liberation Brigades.

A beautiful 19th-century mansion slowly crumbled and became a 'ghost house' after World War II.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Hungarian mummies in beautiful painted coffins.

After 11 years of reconstruction work, Slovakia's finest hilltop chapel complex is finally reopen to the public.

Mysterious painted skulls in Moravia.

A concrete plant shaped like four giant soldiers commemorates one of the most decisive battles of the Napoleonic Wars.

The sanctuary holds what was once believed to be the saint's incorruptible tongue.

This trio of reliefs—an ear, a mouth, and a pair of eyes—carved into the walls of flooded quarries is a monument to spying.

Prague's "Little Hanoi" is one of the commercial centers of Czechia's Vietnamese community.