Somewhere in the world right now--much closer than you think--people are playing with trains. You might not see them at first, but they're there. In basements. In garages. In converted Army barracks. They're among the world's most compelling underground communities.

• Tom Stechschulte
• Michael Gross
• Tony Koester
• Tim Lewis
• David Willoughby
• Doug O'Brien
• Nick Taylor
• John Edgington