This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

A sculpture of the beloved author surrounded by characters from his fairy tales.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

Breathtaking and huge 430 year old maps of Italy.

A church of bones, decorated with 40,000 human skeletons.

A Jenga-style cylindrical tower of books that appears to go on forever.

This sixth-century synagogue was first reconstructed digitally, then in real life.

Named for the biblical warrior, the largest castle in Israel actually dates to the Middle Ages.

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

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

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

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