Apparently ABC has put up billboards in 9 different cities that have some sort of relationship to Lost. There's one here in Portland!
Description of Billboards:
Los Angeles, CA (Jack, Hurley) -> The adventure begins here. (Sydney Operahouse in backround)
Tustin, CA (Locke & Nadia) -> Discover the mysteries of Berlin
Ames, IA (Kate) -> Lose yourself in London, (Big Ben 8:15)
Miami, FL (Juliet) -> Discover the mysteries of Berlin
New York, NY (Michael) -> Lose yourself in London. (Big Ben 8:15)
Portland, OR (Mittelos/Ben) -> A new life awaits you in Seoul, (Only 6 people of/among them)
Knoxville, TN (Sawyer) -> Find your way back to L.A. (Kate & Jack both end up in LA)
Seoul, South Korea (Jin & Sun) -> The adventure begins here. (Sydney Operahouse in backround) The area that states 'Your ultimate destination', is translated in Korean as 'You have arrived at your ultimate destination'
Sydney, Australia (Claire) -> Fly to L.A.