Humboldt and his friend, Bonpland, a botanist, left Europe in the early summer of 1799, armed with all sorts of scientific instruments, with letters and passports to admit them everywhere, for an extended journey of scientific exploration in America. After nearly three years in South America, they left it for Mexico, arriving by water at Acapulco at the beginning of 1803. Acapulco is on the Pacific Coast in the state of Guerrero. Humboldt had letters from the court of Spain, which gave him every facility then accessible for travelling in Mexico. They passed through Cuernavaca, stopping to see the monument of Xochicalco in its vicinity. Humboldt notes the heads of crocodiles spouting water carved among the ornaments of this temple, with the comment that it was strange to find such figures employed on a plain four thousand feet above the sea and away from the haunts of these creatures, instead of the plants and animals belonging to the neighborhood. Without delay Humboldt and his companion reached the capital, where they were delighted with all they saw. The Academy of Fine Arts was then in a flourishing condition. Government had assigned it a spacious building, and it had a collection of casts, finer, Humboldt says, than was at that time to be found in Germany. A small school of engraving was opened in the Mint, as early as 1779, by royal order. General interest in this school became so great as to lead the Viceroy Mayorga to project an academy of the three fine arts, painting, sculpture, and architecture. In 1783, under the rule of the good Galvez, royal approval was granted, and license was given for the existing institution under the name of: "Academia de las Nobles Artes de San Carlos de la Nueva España." The academy was formally opened with suitable ceremony in 1785, removed a few years later to the building it still occupies. Charles III. himself sent the collection of casts admired by Humboldt. For twenty years it flourished in the hands of competent artists sent from the mother country. Then the end of that protection, and the turbulent days of civil war, disturbed its even tenor. Humboldt says that every night in its spacious halls, well illumined by Argand lamps, hundreds of young men were assembled, some sketching from plaster-casts or from life, others copying designs of furniture, candelabra, and bronze ornaments; admission was free to all; class, colors, and races were mingled together; the Indian beside the white boy, the son of the poorest mechanic beside that of the richest lord. In 1839 all this was changed. Madame Calderon described the casts as mutilated, the engravings injured, and the building in disorder and abandoned. In this state it remained until the return to power of Juarez, since when, with an annual allowance of $35,000, the institution is doing fairly well. The name is changed to the "National School of Fine Arts"; prizes are given for good work; all teaching is free.