Based on the details in the excerpt, the reader can infer that Champollion was amazed after seeing Karnak. The language used in the excerpt suggests that Champollion was overwhelmed by the size and grandeur of the ruins and that he was impressed by the scale and ambition of ancient Egyptian architecture. The phrase "men a hundred feet high" further emphasizes the sense of awe and wonder that Champollion felt upon seeing Karnak. There is no indication in the excerpt that Champollion was frightened, disappointed, or confused after seeing Karnak.