Did You Ever See a U F O?

It's been a long time since, but I have seen two in my lifetime that were pretty obviously not something we have on this planet.
One was REAL close, and both were in the Sierra Nevada mountains.
We lived right at the edge of the National Forest in Lassen County CA
The first looked just like an Amtrak train car but with real bright white light from what looked like windows along the side. (silver like the train and all)
It hovered silently around the area for probably 45 minutes or so, then moved off and out of sight so fast it was hard to believe.

The other one, well I won't even bother because it was just so close and unbelievable.