How do you hang something on a wall without a nail in the wall?

I want to hang a framed picture, not too big, maybe 20'; x 14';. I don't want to have to stick a nail in the wall, how can I do this where I don't have to put anything through the wall?How do you hang something on a wall without a nail in the wall?
It'll be a bit difficult without a nail or anything through the wall. You could try double sided tape. 3M brand is the first that comes to mind. If it works, you'll probably have paint come off with the tape when you try to move the picture.How do you hang something on a wall without a nail in the wall?
You can use picture hanging strips made by 3M. They don't need nails or screws and when you remove them they don't leave any marks.





The site below will give you more details


http://solutions.3m.com/wps/portal/3M/en鈥?/a>
3M makes a product called Command Strips. I'm a teacher and use them all the time on the concrete block walls in my classroom. They hold very well and come off easily.
Why don't you buy some picture wire and a couple of cup hooks. Then, up where the wall meets the ceiling, if there is a crown molding, screw the cup hooks up there and run two picture wires down the wall and hang the picture on the wires. The small holes at the top of the wall will be almost invisible when the picture is removed.





Even if there is no crown molding, at that point, where the wall and ceiling meet, there is what is called a double top plate, (Steven take note of the proper terminology), and it runs horizontal all around the room. It extends down 3 inches from the ceiling, so there will be no problem trying to find a stud. Just use longer screws in place of the cup hooks.





If you want the hanging wires to be almost invisible, use fishing line.