Morning: Visit Old Town Square, explore narrow streets, visit St. John's Cathedral. Lunch at traditional tavern. Afternoon: Royal Castle tour. Evening: Walk Castle Square at sunset, dinner on Krakowskie Przedmieście.
Morning: POLIN Museum or Warsaw Uprising Museum (book in advance). Lunch near city center. Afternoon: National Museum or Chopin Museum. Evening: Classical concert or theater performance.
Full day exploring Lazienki Park: visit Palace on the Isle, walk lakeside paths, watch peacocks. Picnic in gardens. Evening: Vistula Boulevards walk at sunset.
Morning: Praga neighborhood street art tour. Lunch at alternative café. Afternoon: Powiśle galleries and Vistula riverside. Evening: Modern restaurant dinner or craft brewery in trendy district.
Visit Wilanów Palace morning and afternoon, returning to city evening. Alternatively, full-day excursion to Zelazowa Wola (Chopin's birthplace) with concert if in season. Or explore Modlin Fortress for military history enthusiasts.