This is a gem of a museum, located just off Downing Street.
It's only small - you'd probably need less than an hour to go round - but it's packed full of skeletons and stuffed creatures.
Walking round, you get the impression it's probably not changed at all in the last 30 years, but that adds to the charm.
The whale skeleton hanging outside is rather impressive too.
Well worth a visit - our favourite museum in Cambridge.