Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

The only natural cave bath in all of Europe.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

The massive white mound and accompanying water terraces are a striking geological oddity.

An industrial site turned into Hungary's most cherished natural wonder.

A collection of intricate sculptures so small they have to be seen through a microscope.

This hidden art nouveau gem was designed by an architect in search of a national style.

Once the home of a hermetic monk, this cave now houses a small church.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

A relic of the Cold War tucked away in the forested hills above Bratislava.

This region of Slovakia boasts some of the most plentiful opal mines in the world.

A gorgeous stone viaduct crosses over a bucolic valley.

An unusual cave filled with rare alien-looking aragonite formations.

An extraordinary museum devoted to the pop art legend created by Slovak artists.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

A perfectly preserved hill village where the buildings are painted like white lace.

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

Inside the Šomoška National Nature Reserve exists a unique rock formation rarely seen in the world.

A unique hotel for the artistic soul.

A church of bones, decorated with 40,000 human skeletons.