Katsushika City Museum Planetarium

Found in Ohanajaya out in Katsushika-ku, this planetarium is the first one in Japan to display a 'digital universe', created based on all the planetary data collected throughout history. Making full use of this cutting-edge technology, they curate original programmes – all featuring a live 'navigator' – once every three months. Trust us – this isn't the kind of planetarium that'll make you want to doze off.