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Sites with one page with scrolling using the scroll (middle mouse button) with great presentation abilities
Yes You need some programing skills,, but also things are getting more easier. you can try a cool software from Adobe,,, Adobe Muse
https://helpx.adobe.com/muse/how-to/scroll-effects-motion.html
You need a little bit of JavaScript in order to achieve parallax effect. Actually the main idea is to scroll the background in the back, slower than that of the content on the front.
It's just like when you are driving on a highway, and the things that are closer to you like trees or fences move faster than the objects like mountains etc which appear to be moving much slower.
I hope this answer helped.