Photos of 19th Century 'Wired' Cities

io9:

Before most cables ran underground, all electrical, telephone and telegraph wires were suspended from high poles, creating strange and crowded streetscapes. Here are some typical views of late-19th century Boston, New York, Stockholm, and other wire-filled cities.

Some of the photos are truly astounding. Next time you think you think the wireless channels in your area are too crowded, have a look at these.