Physics World (IOP’s magazine) have collated 12 images that demonstrate the visual beauty that can be found in physics.

My personal favorite is this the Weaire–Phelan foam, which I reproduce below.

The Weaire–Phelan foam is believed to be the lowest energy structure for a foam formed of equal-volume bubbles. The foam was created using a special template in a solution of water and Fairy Liquid, with bubbles being introduced by releasing nitrogen gas from a glass capillary. The resulting foam was photographed using a digital SLR camera.

Link
Our favourite pictures of 2012 (Physics World)