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

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

A tiny park in the middle of some big power politics.

The history of Greece is illustrated through banknotes.

This Greek Orthodox church houses the mummified body of St. Spyridon.

A spectacular Neoclassical palace is home more than 15,000 artifacts and works of art.

The Greek island's old British cemetery feels like a forgotten garden.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A former factory serves as a shrine to the industry that sustained Santorini for decades.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Macabre astrological automaton clock dating to the late 1400s.

This former coal mine, now a fascinating museum, was the site of Belgium's worst mining disaster.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

This huge limestone slab is considered the largest paving stone in Belgium and a relic of the earliest modern paving in Brussels.

Museum preserving torture methods from the past.

Widely advertised as Amsterdam’s narrowest street, this passage was once a highlight of the Red Light District before its windows closed.

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

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

A monument to one of the greatest matadors of all time.

Spain's largest bullring offers a unique glimpse at architecture and history.

The world's largest wooden structure.