Unknown World
- Cast: Bruce Kellogg, Otto Waldis, Jim Bannon, Tom Handley, Dick Cogan
- Duration: 74 minutes
- Genre: Adventure, Science Fiction
- Rating: 4.2/10
- Release Date: 1951-10-26
With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.
