Looking backwards in time is to be constantly surprised. There's always so much that has been forgotten, and is genuinely strange and unfamiliar Seen in detail, eras often belie their stereotypes. How to be a Retronaut posts themed photo galleries chiefly from any decade of the last ten. Topics include Colour tourist photographs from the Soviet Union (1960s), Harlem Street Scenes (1930s), Pepsi advertisements (1950s), an Apple Gift Catalogue (1983), portraits taken in fake snow (Victorian England) and abandoned buildings of Detroit (2000s) and many, many more. The photographs and ephemera are often hard to contextualise and integrate, yet in an odd way, bring the past momentarily into the present.