Usage patterns
光景を目にするto see/witness a scene
I witnessed the tragic scenes of war.
光景を目撃するto witness a scene (often dramatic or shocking)
Many people witnessed the scene of the accident.
光景が広がるa scene spreads out/unfolds before one's eyes
A beautiful scene stretched out before us on top of the mountain.
〈形容詞〉光景a [adjective] scene, such as bizarre or shocking
A bizarre scene spread out there.
光景が忘れられないa scene one cannot forget
I still can't forget the scene from that day.