Assume you can teleport to any civilization from any time period, where would you choose to go and why?

Assume you can teleport to any civilization from any time period, where would you choose to go and why?
Although we have it easier living in our current modern era, I'd probably choose to be a Viking ! I might die or suffer but I don't care, it's just too cool to say "I'm a Viking" !
Dude the old times were hard, like if you're not royalty you will suffer. I'll stay where I am