• A preschooler show for ages 3 to 5 starts daily at 2:30pm; the museum says its other shows don't suit kids under 5
• Arrive 10 minutes early so eyes can adjust to the dark; each show lasts about 30 minutes
• Renovation works on the hill have closed the main building and Copernicus Tower, while the planetarium and the medical history museum stay open

A dome planetarium in the base of the Radziejowski Tower, a former bell tower on Frombork's Cathedral Hill, run by the Nicolaus Copernicus Museum. A 1978 Carl Zeiss projector puts the Sun, the planets and more than 6,000 stars on an 8-meter dome, showing the sky from anywhere on Earth in any season. Shows cover Copernicus's sun-centered theory, the search for life in space, and cartoon stories for small kids.