Personally not a fan of Eiichiro Oda's manga, One Piece. Arguably the most commercially popular manga in Japan since Dragonball.
Like it or not this manga is a marker for this generation of Japanese and manga-philes. I'm sure in about 10 or 15 years some Hollywood studio will acquire the rights to do a live action version of it....and likely screw it up.
From March 20th to June 17 the Mori Arts Center in Roppongi Hills (Tokyo, Japan) will host a One Piece Exhibition featuring original artwork, films, interactive media and all that geek stuff.