The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)- Steam Boats (1 member)
- Steam Engines (190 members)
- Steam Shovels (1 member)
- Steamrollers (1 member)
- Stepney's Branch Line (32 members)
- Story Characters (1 member)
- SuperVia (15 members)
- Swans (1 member)
- Swiss Federal Railways (9 members)
- Talyllyn Railway (19 members)
- Tank Engines (93 members)
- Tanker Trucks (1 member)
- Tankers (1 member)
- Template documentation (11 members)
- Templates (12 members)
- Tender Engines (28 members)
- The Arlesdale Tramway (9 members)
- The Cable Railway (4 members)
- The Circus (6 members)
- The Estate Railway (19 members)
- The Magic Railroad (1 member)
- The Magic Railway (9 members)
- The Main Line (131 members)
- The Other Railway (79 members)
- The Pier (5 members)
- The Steelworks (3 members)
- The Transfer Yards (1 member)
- The Wharf (3 members)
- Thomas' Branch Line (88 members)
- Tidmouth, Knapford and Elsbridge Railway (26 members)
- Tidmouth, Wellsworth, and Suddery Railway (42 members)
- Tidmouth Harbour (4 members)
- Toads (1 member)
- Toby's Branch Line (33 members)
- Tow Trucks (1 member)
- Traction Engines (1 member)
- Tractors (2 members)
- Trucks (13 members)
- Tugboats (2 members)
- Tunnels (11 members)
- Ulfstead Branch Line (25 members)
- Vans (6 members)
- Vicarstown Dieselworks (1 member)
- Watercooler (1 member)
- Watercrafts (44 members)
- Wellsworth Vicarage Orchard (5 members)
- Wellsworth and Suddery Railway (22 members)
- Whales (3 members)
- Whiff's Waste Dump (6 members)
- Yachts (1 member)