This historic rec center in the heart of Israel is a bastion of peace and togetherness.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

The only quarter of the Old City not dedicated to a major world religion.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

A "miracle" that seems to produce more holy fistfights than holy revelations.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

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.

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.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

The most visited, and possibly most controversial, museum in Germany.

The oldest housing complex in Riga is a mini timeline of architectural trends.

A black cat protests the City Guild in Riga's Old Town.

3,000 market stands in five former Zeppelin hangars.

Flamboyant architecture from the turn of 20th century.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.