Krakow is a beautiful city with so much to see and do. Here's an ideal itinerary for 4 days in Krakow:

Day 1:

• Start your day by visiting the Wawel Castle, which is one of the most iconic landmarks in Krakow. You can explore the castle grounds, visit the cathedral, and take a guided tour of the castle.
• After that, head to the Main Market Square, which is the heart of Krakow. Here you can admire the stunning architecture, grab some lunch at one of the many restaurants or cafes, and do some shopping.
• In the afternoon, visit the St. Mary's Basilica, which is located in the Main Market Square. This beautiful church is famous for its stunning interior and the hourly trumpet call from the tower.
• End your day by taking a stroll along the Vistula River and enjoying the beautiful views.

Day 2:

• Start your day by visiting the Auschwitz-Birkenau Memorial and Museum, which is located about an hour outside of Krakow. This is a sobering but important experience that will give you insight into the atrocities committed during World War II.
• After returning to Krakow, head to Kazimierz, which is the Jewish Quarter of the city. Here you can visit the synagogues, explore the narrow streets, and learn about the rich history of the Jewish community in Krakow.
• In the evening, head to one of the many bars or restaurants in Kazimierz for dinner and drinks.

Day 3:

• Start your day by visiting the Wieliczka Salt Mine, which is located about 30 minutes outside of Krakow. This is a unique experience where you can explore the underground tunnels and chambers of the salt mine.
• After returning to Krakow, head to the Planty Park, which is a beautiful green space that surrounds the Old Town. Here you can take a leisurely stroll and enjoy the scenery.
• In the evening, head to the Krakow Philharmonic for a classical music concert or to one of the many theaters in the city for a play or performance.

Day 4:

• Start your day by visiting the Jagiellonian University, which is one of the oldest universities in Europe. You can take a guided tour of the campus and learn about the history of the university.
• After that, head to the National Museum, which has an impressive collection of art and artifacts from Poland's history.
• In the afternoon, visit the Tyniec Abbey, which is located about 20 minutes outside of Krakow. This beautiful monastery is situated on a hill overlooking the Vistula River and offers stunning views of the surrounding countryside.
• End your day by enjoying a traditional Polish meal at one of the many restaurants in the city.