I was sent this nice link by Hexcam to a video on YouTube of Castle Rising Norfolk created using only the free Autodesk 123D Catch.. The actual model is a 3D textured mesh model that can be exported to a wide variety of formats as well as exported as an animation to YouTube or saved to your local computer.
The software you load your photos on uploads the photos and then uses the high end cloud based computer network to mathematically compute the model as it takes a very high end computer and GPU and then sends the model back to your 123D Catch client. There is a Windows version, cloud hosted version so you can use almost any OS, and a mobile version of AutoCAD 123D Catch Mobile in the Apple App Store for the iPad 2 and up..
What can you Catch in 3D?