The explorers of our own day, Aurel Stein, Ellsworth Huntington, and Sven Hedin, travelling in central Asia, have triumphantly vindicated him.

'It is,' says an eminent French historian, 'as though the originals of very old photographs had been suddenly rediscovered: the old descriptions of things which were unchanged could be perfectly superimposed upon present reality,'[36] and Huntington and Aurel Stein took with them to the inaccessible districts of central Asia as guide-books the book of the Chinese pilgrim Hiwen Thsang (seventh century) and the book of Marco Polo, and over and over again found how accurate were their descriptions.
It is indeed almost impossible to exaggerate the extent of Marco Polo's accomplishment.

It is best estimated in the often-quoted words of Sir Henry Yule, whose edition of his book is one of the great works of English scholarship: He was the first traveller to trace a route across the whole longitude of Asia, naming and describing kingdom after kingdom, which he had seen with his own eyes, the desert of Persia, the flowering plateaux and wild gorges of Badakhshan, the jade-bearing rivers of Khotan, the Mongol steppes, cradle of the power that had so lately threatened to swallow up Christendom, the new and brilliant court that had been established at Cambaluc: the first Travellers to reveal China in all its wealth and vastness, its mighty rivers, its huge cities, its rich manufactures, its swarming population, the inconceivably vast fleets that quickened its seas and inland waters; to tell us of the nations on its borders with all their eccentricities of manners and worship; of Tibet with its sordid devotees; of Burma with its golden pagodas and their tinkling crowns; of Laos, of Siam, of Cochin China, of Japan, the Eastern Thule, with its rosy pearls and golden-roofed palaces; the first to speak of that Museum of Beauty and Wonder, still so imperfectly ransacked, the Indian Archipelago, source of those aromatics then so highly prized and whose origin was so dark; of Java the Pearl of Islands; of Sumatra with its many kings, its strange costly products, and its cannibal races; of the naked savages of Nicobar and Andaman; of Ceylon, the Isle of Gems, with its Sacred Mountain and its Tomb of Adam; of India the Great, not as a dreamland of Alexandrian fables, but as a country seen and partially explored, with its virtuous Brahmans, its obscene ascetics, its diamonds and the strange tales of their acquisition, its sea-beds of pearl and its powerful sun; the first in modern times to give any distinct account of the secluded Christian Empire of Abyssinia, to speak, though indeed dimly, of Zanzibar with its negroes and its ivory and of the vast and distant Madagascar, bordering on the Dark Ocean of the South, with its Ruc and other monstrosities; and in a remotely opposite region, of Siberia and the Arctic Ocean, of dog-sledges, white bears and reindeer-riding Tunguses.[37] The knowledge which Marco Polo had thus brought to Europe, the intercourse between East and West which his experience had shown to be so desirable, continued to grow after him.

Merchants and missionaries alike travelled by land or sea eastward to Cathay.[38] Another of those indomitable Franciscan friars, John of Monte Corvino, went out at the age of fifty and became Archbishop of Peking.

Churches and houses of friars were founded in some of the Chinese cities.