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If you're ever time travelling, fucking your way through the centuries, the New York Times has your back:
they've found a guide to New York whorehouses from 1870, complete with addresses and thumbs-up and thumbs-down, plus advice on how not to get fucked over in the process.
There's even an interactive guide - purely for historical purposes, of course.
Bro Bible has some more analysis, for those inclined to take advice from bros about hos.