A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

The plague quarantine island home to the alleged "Vampire of Venice."

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Go inside to really appreciate this 500-year-old technological masterpiece.

Venice's "Island of the Mad."

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

The remains of "the Pearl of Scotland" can be found inside this church.

More stones than Stonehenge, all scattered within a windswept landscape sure to enchant 'Outlander' fans.

Northern Kentucky’s very own Notre Dame showcases intricate stained glass and the bones of saints.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

At this ancient settlement at the foot of Mount Babadağ, honeycomb tombs are carved into a round cliff.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

A remnant of the Roman army's presence on the coast of Scotland.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

A once extravagant mansion, now reduced to ruin.

This gravestone and its inscription inspired a movement that has spanned generations and saved countless lives.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.