Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Provide 3 fun facts about the Grand Canyon.

### Response:
1. The Grand Canyon is the second largest canyon in the world. 
2. The Grand Canyon is 277 miles long, up to 18 miles wide, and a mile deep. 
3. Almost two billion years of Earth's geological history can be seen in the rocks found in the walls of the Grand Canyon.