The last of Amsterdam's original sea level markers remaining in place.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This unattributed sculpture in Amsterdam is hiding in plain sight.

The history and future of cannabis.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The world's only museum devoted to the wonders of fluorescence.

A shining treasure trove of fine Mexican silver dating back to the 15th century.

This woodland architectural installation acts as a camera obscura for the heavens.

This research center for rare prosimians is studying how they sleep to help prolong human life.

A folk art mecca famous among outsider art fans.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

A sculptor's dream castle turned fantastical ruin.