I’d go waaaay back and try to find the Ancient Civillizations. Including and l predating the Sumerians. I’d love to see what they were like, how similar to us now, and how they were better.

I’d also like to spend a night in 80s goth scene London.

Also I’d wanna go back and see some BIG TREES.

I love the contrast between this and OP’s comment.

I like olives.