18th century Scotland.

Was thinking sometime before the 2 worlds collided. The theory that the moon and earth were twin planets and they hit each other to form what we have now.

Perhaps the 1950's & 60's . I rather like having indoor plumbing . Some of the major illnesses were finding vaccines . There didn't seem to be as many serial killers or mass murders as now . While those periods of time were far from perfect , I think generically speaking , the average life , was in a good place. Didn't have everything we saw advertised , but we had what we needed . The general population wasn't as whiney .

I would go back to Elizabethan England.

I'd jump ahead a few years, take notes, then return to this time and start buying stocks and making bets on games and horse races, LOL!

That period when America was last great. Not sure how to dress, as it's a complete mystery to me

I'd go forward ten years and hope to find the USA not a dictatorship but mostly that GRRMartin had finally finished publishing his Song of Ice and Fire series so I could pick up the books and read them.

No time before indoor plumbing and air conditioning. I guess l am already here.

I would like to go back and observe the Inca Empire.