Don’t you hate it when someone tells you that you don’t know diddly squat, don’t know jack? Does it make you more determined than ever to succeed? Do you not tell anyone and continue building your dream in secret? Are those dreams ever as big as building a castle? Each of these 14 castles were constructed primarily as the DIY work of one man, except for perhaps a few family members or friends who also didn’t know jack but pitched in.