I just received this link in an e-mail from this company. Though they also cover other subjects of interest, the link below covers railroad attractions, with interactive maps. To use them, you select an address, state or metro area, then when the map for that area pops up, you simply aim your pointer at the the various "R" markings on the map. That brings up listings for that area's RR attractions. I found the listings quite detailed, even including hobby shops that deal in trains. Well worth a look, especially before traveling.

http://find.mapmuse.com/re1/interest.ph ... thCod=oran