At the turn of XX century, in St. Petersburg they would lay rails on the ice of Neva and get a tram going across the river [1] Will not possible nowdays due to

At the turn of XX century, in St. Petersburg they would lay rails on the ice of Neva and get a tram going across the river [1] Will not possible nowdays due to a combination of climate change and the fact that megapolis makes its own weather - it now thaws regularly. Also not necessary due to all the bridges :) 1. https://ru.wikipedia.org/wiki/Ледовый_трамвай_Санкт-Петербурга#/media/Файл:TramIceSenatsky01.jpg https://ru.wikipedia.org/wiki/Ледовый_трамвай_Санкт-Петербур...