Take a tour of Monte Carlo Casino in Monaco – part of the World’s Greatest Attractions series by GeoBeats. It's a big-name location in a small country, with big style. Monaco is the world's second smallest country, but its Monte Carlo Casino is world famous. This casino has a well-deserved reputation for being a luxurious and classy establishment. Though it's nearly 150 years old, the Monte Carlo Casino still looks brand new. The architect who designed the casino was Charles Garnier, the man who designed the Paris Opera. Monte Carlo's exquisite buildings and beautiful grounds, gardens, and fountains, are a big sight.