Caryl Pettijohn’s train room is 3,000 square feet, with a 2,500 square foot Standard gauge layout where 20 trains can run simultaneously. Dimitri Economides built a spectacular two-level layout featuring colorful European and American Standard and O gauge trains. Clyde Easterley collects trains and Erector sets. Clyde’s layout features Standard, O, and 1 gauge trains all running at once.