Lasers have nearly infinite focus, allowing for projection of images onto virtually any large surface from almost any angle.  Large projection screens can be erected, or an existing flat structure such as a building may be used for a laser show or a large-scale advertising campaign.  Even mountains, tree lines, or clouds may be used as a projection medium!

Rear projection onto a light scrim produces an image that is visible from both sides, and increases advertising exposure.

Even lighter scrims produce images that appear to hang in 3D above the audience.  Front or rear projection may be utilized, and the effect is further enhanced through the use of fog or haze (more images on the beam show page).

Even highly irregular surfaces -- such as the top of a battleship  may be used as a laser projection surface

... but with lasers, bigger is always better:  100'x100' Projection !