📜 Stockholm’s oldest, historic astronomical observatory, completed in 1753. 🔍 Originally built to map star movements and chart time, it now functions as a museum. # Why Go 🔭 Explore 18th-century astronomical instruments and meridian line. 🏛️ Admire the architecture by Carl Hårleman. 🌆 Enjoy panoramic views of Stockholm from the dome. 🌳 Relax in the surrounding park with sculptures and a walled garden. ☕ Enjoy a cafe in a satellite building. 🗣️ Engage with an amateur astronomer club. # Why Avoid 🚫 Main building accessible only on specific open days. # Tips 🗣️ Engage with amateur astronomers in satellite buildings. 🗓️ Check the schedule for monthly open days to visit the main building. # Cost 💰 Entrance to the grounds is free. # Hours 🕒 Grounds are always open; main building accessible once a month on the 20th.