The Colosseum in Rome, originally named the Flavian Amphitheater because it was built by emperors of the Flavian dynasty, opened in 80 C.E. and still holds the Guinness World Record for the largest amphitheater on earth. The Colosseum is one of the most popular tourist attractions in Italy, with the number of yearly visitors reaching more than 7 million in 2019. 

From 2013 through 2021, the ancient amphitheater underwent a somewhat controversial $30 million renovation funded largely by the Italian luxury goods brand Tod's. The structure now sparkles under the sun after almost 2,000 years' worth of grime was blasted off the facade.