This is the first scenery piece i created from Fallout 3. These are the gates to Megaton, a settlement build mainly from an old airoplane, with the wings flanking the gate and one of the engines powering it. I am very pleased at how it turned out and i think it looks quite like the real thing! The gates do open with a crank at the back as you may be able to see in the other pictures, one is with the gates open. I have also included the two guards of the gate; Stochholm with a hunting rifle on a walkway above the gate and the protectron Deputy Weld on the ground. It took me a while before i was happy with weld but he'll do! Hope you like!
I think there is a way but maybe only on the PC version. From the inside of Megaton from Lucas Simms house if i remember correctly. There is an awsome Fallout 3 wiki called the Vault that says how to get to him.