Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

An entertainment center in a huge transparent tent.

A sober museum housed in the original administrative building of one of Stalin's largest gulags.

A marvel of Byzantine engineering under the streets of Istanbul.

This Soviet-era "closed town" was a top secret uranium producer often left off of maps.

A decommissioned submarine base makes a great space for graffiti art.

A statue of the Soviet leader still stands in a quiet corner of Estonia’s most Russian city.

Historic slum of Tartu.

Spend the night in 1920s Latvia in this historic recreation and movie set.

Sculpture garden of religious statues made it through Soviet rule.

A narrow strip of land is home to the tallest migrating dunes in Europe.

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Commonly acknowledged as the only public monument to the Devil himself.