The Štefánik Observatory, located in Petřín Park since 1928, offers a cool peek into the day and night skies. With public viewings, a rad permanent astronomy exhibition, and tours of their equipment, it's a stellar spot for anyone curious about the cosmos. Plus, you can even score a combo ticket to check out the Petřín Lookout Tower and Mirror Maze while you're at it. It's like a mini space adventure right in Prague! 🌌🔭