1.   I searched the horizon but could not see the hill I used for navigation.

2.   He let the bat dangle from his fingers as he searched the horizon for the ball, like a fighter pilot seeking out his enemy above the clouds.

3.   So I crank the other way and wait, searching the horizon for my cloud.

4.   To find the bazaar, a visitor has only to search the horizon for the sight of crossed poles poking into the sky.

5.   Both teams sent crewmen up their masts to search the horizon for a better breeze.

6.   Its crew searches the horizon for one of the rarest sights on Earth.