This historic Amsterdam bar used to accept sailor's monkeys as payment.

Christ's blood allegedly preserved in a Belgian town.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

A beer pipeline runs beneath Bruges.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

The only museum outside of Australia dedicated to exhibiting the artwork of Indigenous Australian artists.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

Scattered around Atlanta are little doors with big charm.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

The world's first time capsule lies behind a welded steel door in Atlanta.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

These unusual rooms on wheels are holdovers from the 1960s.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

A 1950s beatnik coffee house, turned 60s counterculture hotspot, turned modern music venue.

Cool down and fill up after visiting Teotihuacán at this bar and restaurant in a deep, underground cave.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

Fascinating town where normal life interfaces with the occult.

Famously misunderstood wonder of the ancient world

Follow the original medieval paths that wind through this intriguing section of the city.