For Christians among us...

The NGC 660 and NGC 4650A are "Polar Ring Galaxies" that appear as crosses.

Here is a link to NGC 660-
http://www.astroblogs.nl/wp-content/uploads/2013/01/NGC-660.jpg

NGC 4650A looks quite different.
http://upload.wikimedia.org/wikipedi..._I_HST2002.jpg

If you do an image search for NGC 660 or NGC 4650A you will get a bunch of pictures of them.

A scientific explanation is at this link at NASA's Astronomy Picture of the Day for November 10, 2012-

http://apod.nasa.gov/apod/ap121110.html