Definition.com
The Grand Canyon is yawning hole which can hardly be blamed, as anyone would yawn like that if they saw as many tourists as it sees.
Dad Joke.com
What do you hear when you drop an omelet in the Grand Canyon?Egg-o, egg-o, egg-o
Trivia.com
the Grand Canyon can hold around 900 trillion footballs
Definition.com
The Grand Canyon is carven deep by the master hand; it is the gulf of silence, widened in the desert; it is all time inscribing the naked rock; it is the book of earth.