Venus has an extremely slow rotation on its axis, taking about 243 Earth days to complete just one full spin. However, it only takes about 225 Earth days for Venus to complete a full orbit around the Sun.

To make things even weirder, Venus spins in the opposite direction of most planets (retrograde rotation), meaning if you were standing on its surface, the Sun would rise in the west and set in the east!

It was a trivia question that I heard on WNYC radio. It took a few callers to get it right.