Literally anywhere in the Canadian prairies. You can see roughly 30km in each direction pretty easy. Saskatchewan is the flattest. They did a lazer test there of over 40km. Many frozen lakes. I drive winter roads, some are 15km long or so, you can see the other side.
Prove that please.
Find me a place where you can see the horizon more than 3 miles away.
Literally anywhere in the Canadian prairies. You can see roughly 30km in each direction pretty easy. Saskatchewan is the flattest. They did a lazer test there of over 40km. Many frozen lakes. I drive winter roads, some are 15km long or so, you can see the other side.