Swedish science and technology museum Tekniska Museet has a collection of vintage images of theTelefontornet, a large communications tower built during the late 19th century that directed around 5,000 phone lines across Stockholm.

tower-1 tower-2 tower-11 tower-3 tower-4 tower-5 tower-6 tower-7 tower-8 tower-9 tower-10 tower-12 6838150560_3808dda2a3_h-750x559 6838150650_065d251930_h-750x564 6838151302_f863be56b6_h-583x750image via Tekniska Museet

via Retronaut, Twisted Sifter, Colossal