Metropolis is a fantastic anime based on the manga of the same name, created by japanese comics legend Osamu Tezuka.
Part steampunk, part sci fi, part noir detective story, Metropolis is wonderfully animated and dubbed in its original Japanese with a very apt little jazz score. Its a visual and audio treat for any anime fan. The subtitles are extremely well done and the story, while nothing hugely original nowadays, is gripping and heartwarming.
It is said Fritz Langs 1927 silent masterwork Metropolis served merely as inspiration for Tezuka in the original manga but the anime takes it a little further, flirting with themes from that work. (the class divide and humanity vs robotics to name a couple.) However this is a plot unto its own with great characters you can really care about.
The climactic finale, with a splendiferous 1960s' rock n roll ballad sung by Ray Charles, almost brought a tear to my eye the first time I watched. And Ive re-watched several times since as its just such a nice comforting world to visit from time to time.
A pleasure everytime :D