The Grand Canyon.
I think everybody knows.
It is huge.
I have been there twice.
The first time was about 30 years ago, I lost my camera there.
So I was shocked and sad.
But later they found it at the back of the bus and sent it to me.
I was surprised and happy.
But it was stolen some years later in the San Francisco airport.
So my second time there was better. lol
Anyway the Grand Canyon is great.