If I had to bottle s memory, it would probably be sometime when my family went to the Grand Canyon. I was still little at that time, but i only remember getting off a train or something, it's all unclear to me. I remember it was sunny out, and there was a lot of people between the train station and getting off the train. From there it's all fuzzy and unclear what happened after that. The train was a a steam train from what I remember, but i didn't pay much attention to that. The scenery was amazing because you had the Grand Canyon, the train, which wasn't very beautiful, but the scenery was just jaw dropping to look at. 
picture from here

picture from here