One pair of flies can produce more than one million offspring in a matter of weeks. It’s no wonder, then, that flies plague every part of the world except the polar ice caps. In North America alone there are more than 16,000 species, the common factor being they all have two wings. This means flies must land often, readily spreading disease as they move quickly from rotten garbage to exposed human food and eating utensils. Whether you’re intrigued or disgusted by these little insects, the Fliegen exhibition at the Museum für Naturkunde Berlin (p. 40), showing until 15 January, is sure to fascinate. A visit will also bring you face to face with the world’s largest dinosaur skeleton, a wet collection with around one million zoological objects preserved in ethanol, a display of more than 1000 different minerals, and an impressive solar system presentation – entertainment for the kids and the grownups.