I suggest checking out your local Walmart, Target, TJ Maxx, Ross and, my personal favorite, flea markets!
For larger artwork it is highly recommended you have your print matted, mounted and framed to ensure longevity.
Not sure what size to get? Well first where do you plan to hang your artwork?
Choosing to display a collection of images allows you to showcase not only the landscape of the destination, but also the smaller details.