Lets say time travel (backwards) was possible and you could be a fly on the wall and observe only where would you go? My top ones are

1. The White House during the Cuban Missile crisis.
2. The crucifixion of Jesus
3. The grassy knoll

Marilyn Monroe's bedroom. LOL

The first land-dwelling multicellular life.

The last eruption of the Yellowstone Caldera. Watching from outer space of course.

They day I was born so I could see that pure joy on my mom & dad's faces. Not being sentimental but I guarantee that it was more pure than all the other facial expressions they've made since, lol.

1. 1947, Los Angeles, California, 39th & Norton.
2. Jerusalem, 4 B.C.
3. 1977, Purchase Apple stock - a lot of it