The maximum security facility was once thought to have "the bloodiest 47 acres in America."

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Monastery complex at the location where bodies of the executed Romanov royal family were discovered.

The coldest city in the world.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.