A walk through the historic city center, under the streets of Seattle.

A colorful architectural gem in Seattle's uniquely modern Central Library.

Shrine to Japanese water-goblins, complete with their preserved body parts.

An ordinary pond with fish from out of this world.

The remains of the great moral philosopher reside in a university in London.

An unusual round church in London with a Templar past.

A mysterious artist-run cabinet of curiosities and library.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Geothermal waterfalls in Tuscany.

Church holding the preserved body of a levitating saint.

Caligula's colossal pleasure ships, discovered by Mussolini only to be lost in flames.

Ruins of a 10th century church tucked away deep in a botanical garden.

Hundreds of thousands of ancient documents offer a unique glimpse into Jewish life in Cairo.

Charnel house at the foot of Mount Sinai.

For nearly 2,000 years this church has been waging war on local snakes by importing cats.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

This wooden home was built in West Virginia by a Scottish immigrant before being moved to an Israeli winery.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

The remains of this ancient fortress atop a manmade hill look as though they were built into a volcano.

A historic chapel filled with colorful murals and a colorful past.