The 'Tower of the Sun' is a monument built by Japanese artist Taro Okamoto as a symbol of Expo '70 (World's Fair held in Osaka, Japan).
Tower of the Sun Papercraft [Download]
Howl's Moving Castle Papercraft [Related Posts]
Harry Potter - Hogwarts Castle Papercraft
Osaka Castle Papercraft
Papercraft Castle In The Ocean by Wataru Itou
Temple of the Forbidden Eye Papercraft