This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

The romantic garden was the epicenter of the Hungarian art scene in the 1880s.

A museum in the childhood house of a medical pioneer.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

A Hungarian pharmacy museum with a box full of mummy powder.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This Paleolithic cave may be the oldest cemetery in North Africa.

Reaching this rock formation involves a hike through rocky rapids and springs where wild turtles reproduce.

Perhaps the most spectacular grotto along the Algarve coastline.

A once-fairy tale mansion now stands in a state of disrepair.

Within the Dadès Gorge, amazing vistas and towering cliff faces can be seen at each new curve and bend in the road.

The mouldering remains of a disgraced British children's icon are hidden in the brush of a public park.

A collection of retro plastic goods made with "the material of a thousand uses."

The longest eruption in the history of La Palma originated with this volcano in September 2021.

The world's largest single-aperture telescope resides in the Canary Islands.

Several petroglyphs are all that remain of an ancient pyramid.

The oldest Marian image in the Canary Islands still impresses people nearly half a millennium later.

Tools, pottery, and mummies showcase the history of La Palma's native people.

A stunning Victorian abbey and walled garden on a lakefront.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

A nuclear reactor created for Eisenhower's "Atoms for Peace" campaign is now used for research at a Dutch university.