The season four premiere of the hit history docuseries Mysteries of the Abandoned: Hidden America premieres on Discovery Wednesday, April 23 at 11/10c. For those unfamiliar with the popular ...

“Mysteries of the Abandoned: Hidden America” returns Wednesday, April 23 at 11 p.m. ET on the Discovery Channel.

On the season four premiere episode of "Mysteries of the Abandoned: Hidden America," viewers will visit a worldwide communications facility that was taken over by a dangerous cult and other long ...

All episodes of Mysteries of the Abandoned: Hidden America TV series. Trending 'Wicked: For Good' Trailer 'Zootopia 2' Teaser Trailer 'Superman' Trailer 'Ironheart' Trailer.