Warsaw Old Town and Royal Castle

Warsaw's Old Town was almost completely destroyed in 1944 and rebuilt brick by brick from paintings and old photographs, so faithfully that it's a UNESCO World Heritage Site. The Royal Castle, also rebuilt, has grand state rooms and two Rembrandt paintings.

Walk the Royal Route south to the Łazienki Park, with its Palace on the Isle and Chopin concerts on summer Sundays. The Warsaw Uprising Museum and POLIN Museum of the History of Polish Jews are excellent. Climb the Palace of Culture and Science for the view.