What period in Earth's history is/was most beautiful to visit?

Definitely XVI century, England! :)

It has always been, and always will be, the far future.

When Donald Trumps America was great?

Beauty is in the eye of the beholder, so it depends.

I would like to visit Africa before European colonization.

And Egypt in the time of the Pharoahs, if I could be seen as someone who would be allowed to travel and be hosted and if I could speak the language.

I’d like to visit Rome when it was doing well.

I have long wanted to see a Triceratops.

Back when human global population was less than a billion maybe.

If it has to be in the past, it would be the period right after that planetary collision ripped a huge chunk out of the planet, and when the newly forming moon and earth are doing their post collision dance whole both collect their debris.

I envision the very FIRST day it was here & before mankind had time to screw it up!!!

My dirty city was America’s cleanest city for decades, but that’s hard to imagine now.

I would like to see some of the familiar places in my city as they were about 1930, or maybe 1929 before the crash. I’d do a heckuva lot of exploring familiar streets and neighborhoods

The Hadean eon.

When the rains came.

I am an imprisoned fan of modern conveniences.
I afraid I wouldn’t be happy visiting very far in the past.

I am quite sure visiting past times seems far more romantic to people who have never used a little, wood outhouse.

Simpler times for me are tarnished with memories of the very inconveniences which propelled science and inventions forward.

Babylon

https://vacationidea.com/getaways/most-beautiful-places-in-the-world.html

Ancient Sumeria, maybe pre–Colombian North America.