Closely followed by the nether portal. Yeah, but a good example of making a multi-block machine using simple components is for example an ender piston farm. This is what I yearn for, simple little blocks, with simple mechanics, which let you design your own machines. The modder need to drive a screw with a sledge hammer is... odd to say the least.Actually, the very first multi block structure was the vanilla double chest. ;-)
Also, I'd like use this opportunity to apologize for the massive derail I caused.