Water of undetermined depth has attracted rare fish and cult leaders alike.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

Da Vinci's equestrian statue, 500 years in the making.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An exclusive waiting room built for the royal family in the 1920s is hidden in Milan’s central station.

The enigmatic sculpture hides above an escalator in a Milan metro station.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

The only thing stranger than stumbling onto these philosophical musings is the story of the homesteader who created them.

In California, colorful roadside signs remind us all that love transcends borders.

A tribute to Loveland’s most famous sweethearts, who helped spread cupid’s message to millions.

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.

In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

Located more than 600 feet beneath sea level, this tunnel boasts the world's first undersea roundabout.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

A massive Montreal stadium that has seen nothing but trouble since its inception.

What once sat in the world’s spotlight is today a largely disused ghost complex.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

A war-torn Olympic relic is being overtaken by graffiti and nature.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

On East Burnside, a 24-hour vending machine distributes world-class pastries.

Take a ride back in time with a steam locomotive trip through Eritrea’s mountainous countryside.