Most of the major sightseeing attractions are located in Centrum area, which encompasses seven districts, however, the most important district for sight seeing is likely to be considered ÅródmieÅcie. The other districts all have something else to offer too, but the further from Centrum you journey, the less likely you're to find much of anything that is of any major interest, although Wilanów's palace and Kabaty forest are interesting enough.
itineraries
The Royal Road Trakt Królewski was originally a track linking the Royal Castle to the Royal Palace in Wilanów PaÅac Królewski w Wilanowie, some 10 km farther. There are many points of interest along the route, and there's a Poster Museum Muzeum Plakatu in Wilanów as well.