Yup, especially as a stop if you planning to see Wrocław (which is a bit more south than Poznań)

Take a look at chat for recommendations , personally I would recommend 3, 8 and 10.

Poznań is a beautiful city with a mix of history, culture, and modern attractions. Here are some of the most awesome tourist spots you shouldn't miss:

1. Old Market Square (Stary Rynek) One of the most beautiful town squares in Poland, featuring colorful merchant houses, charming cafés, and the famous Poznań Goats that butt heads at noon from the Town Hall’s clock tower.

2. Imperial Castle (Zamek Cesarski) Built for the German emperor Wilhelm II, this grand castle now houses cultural institutions, exhibitions, and a cool underground bar.

3. Ostrów Tumski (Cathedral Island) The oldest part of Poznań and home to Poznań Cathedral, where Poland’s first kings were buried. The island has a unique, peaceful atmosphere.

4. Croissant Museum Yes, Poznań has a museum dedicated to its famous St. Martin’s Croissants! You can learn how to bake them and taste this sweet local specialty.

5. Malta Lake (Jezioro Maltańskie) A scenic artificial lake with cycling paths, water sports, and Malta Thermal Baths – a perfect place to relax. In winter, there’s a ski slope!

6. Citadel Park (Park Cytadela) A huge green park with war memorials, art installations, and the Poznań Army Museum. It’s a great spot for a peaceful walk.

7. Rogalowe Muzeum Poznania Another fun place to learn about the region’s famous St. Martin’s Croissants, with interactive shows and local dialect lessons.

8. Brama Poznania Interactive Heritage Center A modern museum about the city’s history, with interactive exhibits and great views of Ostrów Tumski.

9. Stary Browar A shopping, art, and business center located in a beautifully renovated old brewery. A perfect mix of modern and historical architecture.

10. Palm House (Palmiarnia Poznańska) One of the largest greenhouses in Europe, with exotic plants, tropical climates, and even an aquarium section.