This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

A floating cat sanctuary on an Amsterdam canal.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

The little bear in the "funny kind of hat" has made his way from London back to Peru.

What was once England's second-richest abbey is now a haunting ruin.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Death rituals and sacrifice inside a Peruvian megalith.

Did Inca children also slide down these smooth rocky slopes above Cusco?

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

A huge old mansion full of thousands of toys, each there to be used and played with.

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

Cat art as far as the eye can see.