31. At this time Deep Navigation had an extensive underground mine railway, with of underground railways . 32. Friendly Belgians moved him from one home to another at night on an underground railway . 33. The play was presented by the Underground Railway Theater. 34. The plans also set aside space for the railway line and an underground railway station. 35. The tavern was believed to be a stop on the Underground Railway for freed slaves. 36. Being a fully underground railway , it is also considered the highest subway in the world. 37. Underground railway links include the Jubilee line from Cutty Sark in the centre of Greenwich.38. The Haifa underground railway system is called Carmelit. 39. The proposed underground railway to Sydney Airport was completed in 2000 as a CityRail suburban railway. 40. The Central London Railway was the first underground railway to have the station platforms illuminated electrically.
