The spirit of ancient Carthage must have breathed upon this "Very Royal and Loyal City" which Pedro de Heredia in the sixteenth century founded on the north coast of New Granada, and bequeathed to it a portion of its own romance and tragedy. Superbly placed upon a narrow, tongue-shaped islet, one of a group that shield an ample harbor from the sharp tropical storms which burst unheralded over the sea without; girdled by huge, battlemented walls, and guarded by frowning fortresses, Cartagena commanded the gateway to the exhaustless wealth of the _Cordilleras_, at whose feet she still nestles, bathed in perpetual sunshine, and kissed by cool ocean breezes which temper the winds blowing hot from the steaming _llanos_ of the interior. By the middle of the sixteenth century she offered all that the adventurous seeker of fame and fortune could desire, and attracted to herself not only the chivalry, but the beauty, wealth and learning which, mingled with rougher elements, poured into the New World so freely in the opening scenes of the great drama inaugurated by the arrival of the tiny caravels of Columbus a half century before. The city waxed quickly rich and powerful. Its natural advantages of location, together with its massive fortifications, and its wonderful harbor, so extensive that the combined fleets of Spain might readily have found anchorage therein, early rendered it the choice of the Spanish monarch as his most dependable reservoir and shipping point for the accumulated treasure of his new possessions. The island upon which the city arose was singularly well chosen for defense. Fortified bridges were built to connect it with the mainland, and subterranean passageways led from the great walls encircling it to the impregnable fortress of San Felipe de Barajas, on Mount San Lázaro, a few hundred yards back of the city and commanding the avenues and approaches of the land side. To the east, and about a mile from the walls, the abrupt hill of La Popa rises, surmounted by the convent of Santa Candelaria, likewise connected by underground tunnels to the interior of the city, and commanding the harbor and its approaches from the sea. The harbor formerly connected with the open sea through two entrances, the Boca Grande, a wide, fortified pass between the island of Tierra Bomba and the tongue on which the city stands, and the Boca Chica, some nine miles farther west, a narrow, tortuous pass, wide enough to permit entry to but a single vessel at a time, and commanded by forts San Fernando and San Josè.