Here's a photographic essay from Cassini/Huygens from orbit around the world through Huygens' descent through the clouds and some photos from the surface. Let's explore an alien world!
This first image reveals Titan's surface; Cassini's infrared camera can penetrate some of Titan's clouds. Light and dark regions in the upper left are mysterious types of surface terrain:
This image shows Titan with its atmosphere stripped away (again using infrared imagery):
Here we see Titan's north pole showing a bright spot in infrared:
Now we watch the Huygens probe descending through Titan's atmosphere to the surface:
Here's a photo from Huygens during its descent at an altitude of 10km:
And finally a shot from the surface. This is an alien world, close-up:
Click the images to see the story.
Oh, and for a really neat multimedia exploration, check out NASA's Titan movie