Warsaw

Here's an ideal itinerary for 3 days in Warsaw:

Day 1:

• Start your day with a visit to the Old Town, which is a UNESCO World Heritage Site. Take a stroll through the colorful streets and admire the beautiful architecture.
• Visit the Royal Castle, which was once the residence of Polish monarchs. The castle has been restored to its former glory after being destroyed during World War II.
• Head to the Warsaw Uprising Museum to learn about the city's history during World War II and the brave efforts of the Polish resistance fighters.
• End your day with a relaxing walk in Łazienki Park, which is one of the largest parks in Warsaw. You can also visit the Palace on the Water, which is located within the park.

Day 2:

• Start your day with a visit to the POLIN Museum of the History of Polish Jews, which tells the story of the Jewish community in Poland from the Middle Ages to the present day.
• Next, head to the Palace of Culture and Science, which is the tallest building in Poland. You can take an elevator to the observation deck for panoramic views of the city.
• Visit the Copernicus Science Centre, which is a hands-on science museum that's fun for all ages.
• End your day with a visit to the Neon Muzeum, which showcases neon signs from the Cold War era.

Day 3:

• Start your day with a visit to the Wilanów Palace, which is a Baroque palace that was once the residence of King John III Sobieski.
• Next, head to the Museum of Modern Art, which features contemporary art from Poland and around the world.
• Visit the Vistula River Beach, which is a man-made beach that's perfect for a relaxing afternoon by the water.
• End your day with a visit to the Warsaw Zoo, which is home to over 5,000 animals from around the world.

Of course, there are many other things to see and do in Warsaw, but this itinerary should give you a good idea of what the city has to offer. Enjoy your trip!