Warsaw is a big, spread out city. To get a feel for what’s where take a half day sightseeing tour. You’ll get to pass through the infamous Warsaw Ghetto area, along Royal Route with its aristocratic mansions, and see the Old Town and the Royal Castle. Wander around the Old Town – perfectly reconstructed so that the houses still lean on one another as if with age. Lovely cafes edge the central square; sit and watch the world go by surrounded by the multi-colored buildings, imagining life here before WWII.
The city was the birthplace of Chopin and there is a monument to the composer in Lazienki Park. The original 1926 monument was destroyed during the war but this replica is a popular meeting place and location for concerts. Lazienki Park is a lovely treed space and also has the Lazienki Palace on an island in the lake. For more modern architecture don’t miss the Stalinist Palace of Science and Culture, built by the Russians in their post-war, communist reconstruction.