Crows are so shy, it’s too cute! They’re like cats, if you stare at them or lock eyes, they get really nervous. So slowly close your eyes and look away to put then at ease. If you pull out food they like, like peanuts in their shell, you can almost see a little exclamation mark appearing above their heads, like 🥜 ❗ 🐦⬛
I think, Venice is still the only city literally charging an entrance fee. They do that, because they got more tourists, than the city could handle. But I think what you have heard might be about tourist taxes. Many cities charge those per night. But you won’t notice it directly, it’s just that, if you’re staying in a hotel, they’ll automatically add it to the price of the room.
I second Prague. It’s beautiful and worth it whether you come for the history or the culture or the atmosphere.