untappedcities.com
↩

The MTA’s armored money train that ran from 1951 to 2006 in NYC
2023-01-14 03:32:58 (Hacker News)
Source: Hacker News
How the New York City steam system works
2022-10-29 14:14:09 (Hacker News)
Source: Hacker News

↩