“The Eighth Wonder of the World” 49 The bridge as reconstructed 49 The magnificent single span bridge across the Niagara River below the Falls 50 A view of the iron tube, 2,290 feet in length and 23 feet in diameter 51 The 2000 h.p. electric locomotives hauling the “International Limited” through the tube 51 The massive bridge of the Union Pacific Railway over the Missouri River at Council Bluffs, from which point the first railway across the United States was commenced 62 The timber trestle across Salt Lake, by means of which the Union Pacific saves 57 miles 63 Building the Otavi line through the German South-west African Bush 80 The passage of the first train, gaily decorated for the occasion, over the “toy-like” Otavi Railway 81 The workmen cutting and blasting a narrow path on the steep mountain slopes for the Karawanken Railway 92 The massive steel bridge which carries the railway across the Drave River to approach the tunnel through the Karawanken range in the background 93 The northern entrance to the Karawanken Tunnel 93 The Tauern Railway, showing winding character of the line 96 The entrance to the Tauern Tunnel 96 One of the huge loops on the Tauern 97 The first hour’s work: navvies preparing the grade along the main street of Skaguay 106 By railway to the Klondike--the White Pass and Yukon line under construction 106 The dismal tract of swamp and river through which the Alaskan Central Railway makes its way 107 The wonderful horseshoe timber trestle, 1,240 feet long, varying from 40 to 90 feet high, on the Central Alaskan Railway 112 A wash-out caused by the Placer River in flood 113 The obliteration of the line by a landslide 113 A striking piece of railway building in the Yarmuk Gorge 118 A bird’s-eye view of a chasm in Palestine, through which the line follows a winding path on the left 119 A masonry bridge on the Holy Railway, showing solidity of construction and mountainous character of the country 119