Hand-built fantasy tower brings value to Tokyo ... but now there are too many," 59-year-old Keisuke Oka told AFP inside the building's curved grey walls. "We need to stop mass-producing things ...

Passers-by stop and stare at the ramshackle, hand-built concrete tower that looks like it has ... but now there are too many," 59-year-old Keisuke Oka told AFP inside the building's curved grey ...