Are you more impressed by natural beauty in the environment (i.e. anything not man-made or designed) or constructed beauty (e.g. buildings, bridges, fountains, etc)
Nature. It's why I despise cities.
Natural wonders by far.
I’ve never found entertainment in simply looking at things in general, so neither.
Constructed, hands-down. Just today, I was newly amazed at what the magicians at Nintendo were able to do with Super Mario Galaxy 2...much more impressive than a bunch of boring old trees and rocks :P.
Nature by far.
God's creations never cease to amaze me! Mother Nature is the single most important factor in our lives.