National Museum of the History of Science and Medicine As the national treasury of scientific endeavours, the museum shows some 400 years of advances in knowledge. Developments in the various sciences can be viewed in 24 rooms on two levels. The emphasis is on contributions from the Netherlands.Opening hoursTuesday-Saturday from 10 AM till 5 PMSundays and holidays from 12PM till 5 PMThe Boerhaave Museum is also open on Mondays 10 AM till 5PM, during short school holidays.Closed on Mondays and