Definitely the future! Lots of fun!
Future, the near future!
The future, every time.
I think the future would be more fun to visit because it represents the unknown.
It sends shivers down my spine to think that, 15 years ago, hardly anyone used a cell phone and 25 years ago, the internet was just a concept that seemed futuristic.
If you think about how much has changed in terms of technology since then, you will soon see why traveling 15-15 years in the future would be truly exciting.
What kind of unimaginable technology could they possible have by then?
How long will people live in 100 years time?
Will space travel become more viable?
Will we find a way to visit other planets and unlock the secrets of the universe?
How exciting would it be to discover the answer to these things.
Don't get me wrong, the past holds many mysteries too, and I would love to go back in time and visit some of the places and eras I studied about at school, but if I had to make a choice, I'd pick the future straight away.