But geographical discoveries, in which Venice itself took a leading share, undermined the power of the Italian Republic. When Africa had been circumnavigated and the New World discovered, the Mediterranean ceased to be the great commercial sea of the world. Venice was doomed to die. It no longer monopolized the road to India, and the increasing power of the Turks crippled its Eastern trade. Still, so great were its resources, that it maintained its independence for more than three hundred years after it had lost its factories, and only fell when shamefully deserted by General Bonaparte, its supposed ally. The decadence of Venice was most remarkable during the dominion of Austria. In 1840 the city had less than 100,000 inhabitants, hundreds of its palaces were in ruins, the grass grew in its squares, and seaweeds encumbered its landing-places. Since that time it has been gradually recovering. A bridge of 222 arches and 2,000 feet in length connects it with the mainland, and its commerce, though not equal to that of Trieste, is nevertheless of considerable importance.[74] The manufacture of looking-glasses, lace, and other articles has imparted fresh life to Venice, and there, as well as in other towns of the lagoons (Malamocco, Burano, Murano, and Chioggia), thousands of workmen are busy in the production of those gay-looking glass beads which find their way into every part of the world, and which in certain countries of the East and in Central Africa take the place of coin. But Venice, though less populous and active than of yore, still rejoices in its delightful climate and its bright skies. Its gaiety and fêtes are not yet things of the past, and its palaces, built in a style half Italian, half Moorish, still contain the priceless masterpieces of Titian, Tintoretto, and Paul Veronese.[75] III.—LIGURIA AND THE RIVIERA OF GENOA.[76]