To find out how many times more people visit the Great Wall of China than Times Square, we need to compare the number of people visiting each location.
On an average weekend, 17^4 people visit Times Square, which is equal to 17 * 17 * 17 * 17 = 83521 people.
On the other hand, 17^6 people visit the Great Wall of China, which is equal to 17 * 17 * 17 * 17 * 17 * 17 = 24137569 people.
To calculate the number of times more people visit the Great Wall of China compared to Times Square, we divide the number of people visiting the Great Wall by the number of people visiting Times Square:
24137569 / 83521 = 289
Therefore, the correct answer is: 289 times more people visit the Great Wall of China than Times Square.