800Details:Events: Great Western's Last Castles 800 - COMING SOON Swindon, Wiltshire Wed 8th Feb 2017 @ Climb: 12475m | AAA: 12.5 Entry: £4.00 The Great Western Castle Class locomotive was constructed at Swindon Works. 155 were built, 8 remain; visit all their respective castles for 8 points. Caerphilly, the 1st built, is housed at the start!