Photographer gives a very detailed description of his close distance observation of a triangular UFO
EyesOnCinema
A triangular drone over Cortland, Ohio
Uncle UFO
Firsthand eyewitness accounts of triangular UFOs (Black Triangles)
EyesOnCinema
Are Governments Concealing UFO Crashes?
Secrets, Facts, and Fictions!
Real Men in Black
NightTerrorsWithBill