Replying to International travel advice

So I'm starting to save up to do some of my first international traveling. i should be able to take one week long trip per year if they cost no more then $3000 in total.

I am still debating on where to go so any recommendations would be dope. Im 19 as of now and i believe thats to young to rent a car, not sure if thats only in the US??

Im not traveling to ski although I'm not ruling that out. Ill likely be traveling with my girl that doesnt know how to ski.

Im thinking about paris, greece or rome as a starting trip just to get my legs under me before i try to get out there in the more remote parts of the world due to transportation issues. any tips or stories would be dope.