Here’s a list of my favorite railroad museums and/or heritage/scenic railways (including the ones I have not yet been to as of this personal info listing):

• The Tweetsie Railroad/Dollywood Theme Parks (obviously)
• The Great Smoky Mountains Railroad
• The Three Rivers Rambler/Knoxville & Holston River Railroad of The Gulf & Ohio Railways
• The Tennessee Valley Railroad Museum
• The Big South Fork Scenic Railway
• The North Carolina Transportation Museum
• The Tennessee Central Railway Museum
• West Virginia Mountain Rail Network (A.K.A., The Dinner Train Excursions out of Elkins, WV, The Durbin & Greenbrier Valley Railroad, and The Cass Scenic Railroad)
• The Strasburg Rail Road/The Railroad Museum of Pennsylvania
• The Western Maryland Scenic Railroad
• The East Broad Top Railroad
• The Lehigh Gorge Scenic Railway/The Reading & Northern Railroad
• The Cumbres & Toltec Scenic Railroad
• The Durango & Silverton Narrow Gauge Railroad
• The Georgetown Loop Railroad
• The Colorado Railroad Museum
• The Royal Gorge Route Railroad
• The Heber Valley Scenic Railroad
• The Grand Canyon Scenic Railway
• The Western Pacific Railroad Museum
• Virginia Museum of Transportation/Virginia Scenic Railway/The Buckingham Branch Railroad