I started building a big castle in Minecraft, but then it started to feel like work, and I realized I could go fix things on my real house if that was really important to me.
Sweet crib though
Hehe, yeah, just the thought how much of stone alone would be needed also made me forget the whole idea of castle rather fast.. Not much fun in big projects. Those who have the patience and time for them have conjured up some really awesome stuff though.
Someone on this forum once linked a YouTube of some guy that had recreated the USS Enterprise. It was unbelievable.