Here are some links to the same images taken with the Hubble Space Telescope. These never cease to just amaze me.....
Inside the Dumbbell Nebula: http://heritage.stsci.edu/2003/06/
The "trunks" of the Eagle Nebula: http://hubblesite.org/gallery/showcase/nebulae/n6.shtml
Inside the Swan Nebula: http://store1.yimg.com/I/skyimage_1833_6743874
Here's another of the Swan taken by pro astronomers from earth: