

Exploring an Oklahoman town so wealthy it inspired a Hollywood film.

Exploring a derelict stadium in Lithuania that hosted an unlikely Cold War matchup and an industrial relic in England.

Exploring a crumbling hospital complex in Germany that became the site of unspeakable atrocities and a sprawling Texan farmstead with a hellish reputation.

Exploring two ornate buildings in Texas that were once at the heart of the Mexican Revolution and a top-secret facility outside Berlin, used by a ruthless dictator to escape justice.

Exploring a palatial ruin in Philadelphia built from the riches of an industrial golden age and a country palace in Poland, the scene of a honey-trap devised to ensnare Napoleon.

Exploring a concentration camp in the Czech Republic used for a publicity stunt to fool the world and a stark facility that once housed Oscar Wilde.