This landmark Victorian folly rewards visitors with spectacular views over the Peak District.

A rocky face gazes out over an enormous volcanic crater.

A series of well-preserved ruins show the culture of the ancient Benehoaritas people.

This underwater graveyard commemorates a group of murdered 16th-century missionaries.

This disused Cold War bunker has been restored to all of its early 60s glory.

The last planned Soviet city was built for the former residents of Pripyat after the Chernobyl disaster.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The dining hall that nourishes workers in Chernobyl's Exclusion Zone is also open to visitors.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

A collection of miniature, symbolic sculptures hides in plain sight across Kyiv.

When you've got to go, you've got to go.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This lucky bronze frog was gifted to Madrid by a casino.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

The earliest known map to show America, discovered by accident at a Paris bookshop.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.