Our travellers at length reached a large, open square, on the farther side of which the immense mass of the cathedral was seen rising, like a gray and venerable ruin. The wall which formed the front of it, and which terminated above in the unfinished mason work of the towers, was very irregular in its outline on the top, having remained just as it was left when the builders stopped their work upon it, five hundred years ago. The whole front of this wall, having been formed apparently of clusters of Gothic columns, which had become darkened, and corroded, and moss-covered by time, appeared very much, as Rollo had said, like a range of cliffs—the resemblance being greatly increased by the green fringe of foliage with which the irregular outline of the top was adorned. It may seem strange that such a vegetation as this could arise and be sustained at such a vast elevation. But ancient ruins are almost always found to be thus covered with plants which grow upon them, even at a very great height above the ground, with a luxuriance which is very surprising to those who witness this phenomenon for the first time. The process is this: Mosses and lichens begin to grow first on the stones and in the mortar. The roots of these plants strike in, and assisted by the sun and rain, they gradually disintegrate a portion of the masonry, which, in process of time, forms a soil sufficient for the seeds of other plants, brought by the wind, or dropped by birds, to take root in. At first these plants do not always come to maturity; but when they die and decay, they help to increase the soil, and to make a better bed for the seeds that are to come afterwards. Thus, in the course of centuries, the upper surfaces of old walls and towers become quite fertile in grass and weeds, and sometimes in shrubbery. I once gathered sprigs from quite a large rosebush which I found growing several hundred feet above the ground, on one of the towers of the cathedral of Strasbourg. It was as flourishing a rosebush as I should wish to see in any gentleman's garden.
What Rollo meant by the bears and wolves which he said he saw looking down from these cliff-like towers, were great stone figures of these animals, that projected from various angles and cornices here and there, to serve as waterspouts.
There was an immense door of entrance to the church, at the end of a very deep, arched recess in the middle of the wall, and Mr. George and Rollo went up to it to go in. They were met at the door by another commissioner, who offered his services to show them the church. Mr. George declined this offer, and went in.
The feeling of amazement and awe which the aspect of the interior of the cathedral first awakened in the minds of our travellers was for a moment interrupted by a man in a quaint costume, who came up to them, holding a large silver salver in his hand, with money in it. He said something to Mr. George and Rollo in German. They did not understand what he said; but his action showed that he was taking up a contribution, for something or other, from the visitors who came to see the church. Mr. George paid no attention to him, but walked on.
On looking above and around them, our travellers found themselves in the midst of a sort of forest of monstrous stone columns, which towered to a vast height above their heads, and there were lost in vaults and arches of the most stupendous magnificence and grandeur. The floor was of stone, being formed of square flags, all cracked and corroded by time. Along the sides of the church were various chapels, all adorned with great paintings, and containing altars richly furnished with silver lamps, and glittering paraphernalia of all kinds. Parties of ladies and gentlemen, strangers from all lands, were walking to and fro at leisure about the floor, looking at the paintings, or gazing up into the vaulted roofs, or studying out the inscriptions on the monuments and sculptures which meet the eye on every hand.
All this was in the body of the church, or the nave, as it is called, which is in fact only the vestibule to the more imposing magnificence of what is beyond, in the ambulatory and in the choir. Mr. George and Rollo advanced in this direction, and at length they came to a vast screen made of a very lofty palisade of iron. They approached a door in the centre of the screen, and looking through between the iron bars, they beheld a scene of grandeur and magnificence wholly indescribable. The carved oak stalls, the gorgeously decorated altar, the immense candlesticks with candles twenty feet high, and the lofty ceiling with its splendid frescoes, formed a spectacle so imposing that they both gazed at it for some moments in silent wonder.
"I wish we could get in," said Rollo.
"I wish so too," said Mr. George; "but I suppose that this is a sort of sacred place."
A moment after this, while Mr. George and Rollo were looking through this grating, a sudden sound of music burst upon their ears. It was produced evidently by an organ and a choir of singers, and it seemed to come from far above their heads. The sound was at once deepened in volume by the reverberation of the vaults and arches of the cathedral, and at the same time softened in tone, so that the effect was inconceivably solemn.
"Hark!" said Mr. George.