One of the few guarded stops along the great spice route.

On holy holidays, Israel's second president used this room atop Mount Zion as a refuge to read the Torah.

One of only two towns in Israel populated by Circassians, a sect of Sunni Muslims who are also devoted to Israeli military service.

An autonomous community living in the southern Negev desert.

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

This marvelous work of outsider architecture is built into the cliffs of an Israeli beach.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

A magical oasis in the middle of the Negev Desert.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

This amazing ancient cave was kept secret for seven years to protect it from the public.

Submerged ruins of a Neolithic coastal settlement, where houses, wells, graves and skeletons have been unearthed.

The home of the Dead Sea Scrolls is an abstract modernist dream.

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

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

You can row a boat through this ancient underground reservoir.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

Where America's first doomsday cult awaited the end of the world.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.