The Creepiest Unsolved Mysteries in Existence

Prepare to be concerned. This video is a compilation of our Concerning Mysteries Series. Watch the original videos here:
Flannan Isle: • The Unsolved Flannan I...
The Oakville Blob: • It Rained Blood Cells ...
UVB-76: • This Secret Russian Ra...
Slow Down: • The Mysterious 'Slow D...
Tuskunga Event: • The Unexplained Nuclea...
Upsweep: • The Mysterious Sound i...
Julia: • The Unexplained Myster...
The Bloop: • The Unsolved Mystery o...