Perhaps more strange than a hill in center field, or a ladder projecting skyward, are Tropicana Field's catwalks.
Yes, catwalks, suspended above the Tampa Bay Rays' home field.
There are a total of four catwalks.
Since the catwalks were constructed, numerous balls have hit them, and then careened back it into play. It got so out of hand, baseball had to institute five actual "catwalk rules."
Here's one of them:
"A batted ball that hits a catwalk, lights or suspended objects in fair territory shall be judged fair or foul in relation to the striking point on the ground or where it is touched by the fielder. If the ball hits the catwalk, lights or suspended objects in fair territory and lands in the field in fair territory or is touched by a fielder in fair territory, it shall be judged a fair ball. If the ball strikes the catwalk, lights or suspended objects in fair territory and is caught by a fielder in fair or foul territory, then the batter is out and the base runners run at their own risk."
Ya, I'm sure the players can think about all that in a couple seconds.