Along the pavement of this neighborhood in Madrid are quotes from famous authors.

Remains of the lost church hide beneath this Spanish Parliament building.

This piece of early engineering is rather unknown despite its location in the heart of Madrid.

This giant mural of Santa Muerte in downtown São Paulo reminds passersby of their own mortality.

Even after multiple failed attempts to be hanged, Chaguinhas was still alive, making people believe it was a miracle.

This skyscraper once housed weapons during the revolution and was the scene of two brutal crimes that shocked São Paulo society.

An enigmatic mural hiding in plain sight in one of São Paulo's busiest metro stations.

This vessel is the final ocean-going paddle steamer in the world.

Dedicated to the five postal workers who died aboard the doomed ocean liner, this plaque was made from a spare propeller from the Titanic.

This longship was a gift to commemorate the 1500th anniversary of the Anglo-Saxons arrival in England.

An easy-to-reach, century-old shipwreck in shallow and crystal clear waters.

The last vestiges of this ship are mostly buried beneath the sand dunes.

This 19th-century church was built for Sicilian immigrants, survived World War II, and today stands on a landfill.

The northernmost point of continental Africa—or is it?

An eerie ship cemetery with gunfire as a soundtrack.

The seaside ruins of an ancient salt production facility.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

Exchange a book at the entrance of this medieval Lovere alley.

This Scandinavian island is the site of the first modern observatory.

Hidden in an enchanting ravine, numerous mysterious sandstone grooves hint at ancient pagan rituals.

Legend has it that this church faced a troll problem, leading to the affixing of a stone face of Satan above the entrance to deter further encounters.

Old Danish castle immortalized in Shakespeare's Hamlet.

The shiny silver little brother to Copenhagen's Little Mermaid statue.

Just off the city’s central station hides a quaint lamp-lit alley into medieval Elsinore.