Sort of, you can see the Milky Way easily if you just go to a rural area, and you'll see that even if there is no light pollution it's much dimmer to the eye than you see in photos.

Most of the other nebulae you can't really see at all with your naked eye no matter how dark it is, human eyes just aren't that sensitive. The Orion nebula is one exception, as it's extremely bright for nebula standards, you can see the core part of that nebula with your eye easily.

These photos are more like what the night sky would look like if it was dark AND our eyes were much more sensitive. Maybe some animals actually see it that way, I don't know too much about biology.