Carnival World was a Buffet on the west side of the Rio hotel that always had a 2 hours wait for a table. The food was spectacular in variety and quality from opening to closing. The Casino floor you watched inline was a mass of people. You were in a location full of energy and the robusk atmosphere of this Hotel & Casino was infectious.
On the East side of the Hotel a Seafood Buffet that also had many anxious dinners. These seafood buffet dinners were always playing the slots or consuming reasonable priced beverages @ an amazing round bar in front of the Rio's Seafood Buffet. The din from the multitude of slot machines music jingles was exciting. The delight of the exciting Mardi Gras Parade that circled in that section of the hotel added to your forthcoming culinary delights.
How times have changed, Carnival World is a shadow of its former Buffett, and the seafood buffet closed and unfortunately became an $20 upgrade scam to the horrid downgraded Carnival World Buffet.
If you live in a section of the world that does not offer an average buffet, then you might enjoy what the Rio still offers under the guise of the Carnival World & Seafood Buffet. During Holidays, popular trade Conventions, or weekend that are over booked in Vegas, maybe this buffet is acceptable fare, because everywhere else has longer wait times.