Oft used in Movies

Castel del Monte is a 13th century castle, built by Emperor Frederick II.

A beautiful octagonal structure, perfect for period settings, because of its magnificent proportions and its remoteness from all things modern.

Other than the ticketing system - you can't even go on line, you can only reserve using an App - in Italian.

I wonder what Frederick might have thought about groups of confused visitors crowded around tiny screens trying to work out how-the-hell they might be able to get inside!