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in ""hello dolly."" and, the travel marker in "north by northwest." >> hello there. >> reporter: today the majestic buildings are in disrepair. and, destroyed by decades of neglected. johnson fears more will fall soon unless something is done. and, done quickly. why is it important to save these structures. >> this is part of americana. the story of the bannerman business is the story of great entrepreneurial spirit. but, he also built this extraordinary structure that can be used in many ways, to teach an enlighten our lives. >> reporter: johnson has a plan to secure the castle and restore the bannerman residence to its original glory and he says anyone who wants to get involved can go to bannermancastle.org, for more information. that's it from here, martha, back to you.