Go deep down into the earth to experience the world of Welsh coal miners.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

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

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Cold war icon and onetime "hole" in the iron curtain.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

The first mosque in the world to receive electricity.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

Bridge that died in war and was resurected.

Climb inside an iron crystal magnified 165 billion times its normal size.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

A beautiful and moving memorial set on a little island in the middle of the river in Minsk.

The apartment building where JFK's assassin lived after defecting to the Soviet Union.

A sculpture of graceful storks sits atop this fountain in Independence Square.

Glowing orb in Minsk houses 8,600,000 items.