Secret Pizza at the Cosmopolitan of Las Vegas is so secret that you won't find it on the hotel's restaurant website listings. Located on the third floor, this little pizza joint is unmarked. Walk down a hallway decorated with album covers, and you'll find it at the end of the hallway. Slices start at about $5 and whole pies start at around $25. While the prices might be a little higher than you'll find off the Strip, Secret Pizza offers a deal compared to most other dining options on the Strip. You won't find anything incredibly fancy here as far as flavors, but you will find a solid slice of pizza and as a bonus you can stop in for a post-evening-out slice of pizza until at least 4 a.m. Beer, wine, soda and dessert are also available.