Would i take architecture if i wanted to design roller coasters and a theme park layout?

Question

and what college would be the best for that??

Answer 1

i'd take architecture(maybe engineering is better though) as well as physics.  

Answer 2

If you are interested in actually designing roller coasters - the layout of the ride's track, that is, you'd be best served by a Mechanical Engineering curriculum.  If it's the conceptual layout of entire amusement parks, an engineering degree might do but an architectural education would likely serve you better.

As long as you go to an accredited school for either, I'm sure you'll have enough of the basics.  Then try to land an internship during your coursework, and you're golden!

Jeff