least.js is a random & responsive HTML 5, CSS3 gallery with lazyLoad. Installation and usage is simple, and the end result is quite beautiful.
3D Image Gallery Room is an experimental image gallery with a realistic touch: the images are displayed in a 3D room with walls.
Photobox is a lightweight image gallery modal window script which uses CSS3 heavily for silky-smooth animations and transitions. The goal was to great an image gallery script that utilizes GPU rending instead is the 90% scripts out there which are using javascript to move things around the old fashioned way.
Supports: Firefox, Chrome and IE9+ (works in an ugly way which the users deserve)