Even on a tight schedule, Museum of Prehistoric Thera earns the hours.
Allow 45–75 min.
The essential complement to Akrotiri: small, air-conditioned, and home to the wall paintings and artifacts that bring the buried town to life. The catch is that it's modest in scale and means little without context — pair it with the dig site. For history-minded travelers it's an hour very well spent; others will breeze through.