Near the Giant's Causeway are the ruins of the castles of Dunseverick and Dunluce, situated high above the sea on isolated crags, and the swinging bridge of Carrick-a-Rede, spanning a chasm 80 ft.
The considerable village of Grasmere lies beautifully at the head of the lake of that name; and above Esthwaite is the small town of Hawkshead, with an ancient church, and picturesque houses curiously built on the hill-slope and sometimes spanning the streets.
About a mile distant there was a trestle spanning a deep gorge.
At this spot, a bridge spanning the Uncompahgre River bisected the two main climbing sections that extended almost a mile.
The limits of fortifications, which it had outgrown, have both contributed to render Genoa a picturesque confusion of narrow streets, lanes and alleys, varied with stairways climbing the steeper slopes and bridges spanning the deeper valleys.
A little to the west is the Auld Brig o' Balgownie, a picturesque single arch spanning the deep black stream, said to have been built by King Robert I., and celebrated by Byron in the tenth canto of Don Juan.
The Palazzo della Ragione, with its great hall on the upper floor, is reputed to have the largest roof unsupported by columns in Europe; the hall is nearly rectangular, its length 2672 ft., its breadth 89 ft., and its height 78 ft.; the walls are covered with symbolical paintings in fresco; the building stands upon arches, and the upper storey is surrounded by an open loggia, not unlike that which surrounds the basilica of Vicenza; the Palazzo was begun in 1172 and finished in 1219; in 1306 Fra Giovanni, an Augustinian friar, covered the whole with one roof; originally there were three roofs, spanning the three chambers into which the hall was at first divided; the internal partition walls remained till the fire of 1420, when the Venetian architects who undertook the restoration removed them, throwing all three compartments into one and forming the present great hall.
Six bridges spanning the river and electric lines crossing them have brought Allegheny into close industrial and social relations with the main part of Pittsburg, and on the hills of Allegheny are beautiful homes of wealthy men.
When the railway lies below the surface level the bulk of the offices are often placed on a bridge spanning the lines, access being given to the platforms by staircases or lifts, and similarly when the railway is at a high level the offices may be arranged under the lines.