Same pinch, lol. Me too have an undying passion for History, Geography, and Maps. Nice to see that our interests match. And, as you said, IRI is the biggest virtual platform for railfans. Please take your time going through the site, and you may find out that the site caters to varied interests in IR itself, say PNR predictions, chain creation, News section, or the Forum itself, and you can write trip reports as well. Just enjoy your stay.