Erected at a total cost Of £1,500,000, the Crystal. Palace was without doubt the most magnificent and costly building of its particular kind that has ever been built; the upkeep of it has cost as much as £60,000 a year. The main building, exclusive of wings and colonnades, was 1,850 feet long, and was composed of 9,642 tons of iron and twenty-five acres of,' glass. When the Crystal Palace was removed to Sydenham the central transept was made much higher, and the north and south transepts and the two towers were added. The towers were each 282. feet high, Or 77 feet higher than the Monument and 107 feet higher than Nelson's column in Trafalgar Square. When erected in 1856 these towers were considered a most extraordinary engineering feat, but the first attempt to construct them proved a failure and involved the company in a great loss. When all but completed they were found to be insecure, and would neither carry the weight intended for them nor sustain the vibratory shock of the ascending and descending water, and therefore they had to be pulled down again. The fountains used to rise to a height of two hundred feet, and surpassed those of Versailles.