Ďáblice Astronomical Observatory, located in the north of Prague, has been welcoming stargazers since 1956. Built by local astronomy enthusiasts, it started as a small project and grew into an observatory with two domes. Led for many years by teacher Zdeněk Corn, it became an important place for astronomical observation and education. Today, it operates as part of Prague’s observatory and planetarium network. Dominik Jůn paid a visit.