Las Vegas

The American city of Las Vegas opened the day before yesterday, Saturday, the largest giant spherical building in the world, entirely covered with 16,000 LED screens, with an area of 54,000 square metres.
The screens surrounding the audience - which were accompanied by 167,000 speakers - gave an exceptional audio-visual experience, and the five human-like robots that received the visitors added a distinct dazzle to it.
The building, which was called "The Sphere", is an extraordinary technological masterpiece, designed by the American David J. Charlemagne, and its cost amounted to more than two billion dollars.
Screens can create an interactive environment for visitors, especially by taking different shapes and representing different environments and situations, such as turning into an eye or a huge ball or displaying a clear sky during sunrise or sunset.
The building can accommodate about 18,000 people and will be used to host a variety of events, including concerts, theatrical performances and sporting events, making it one of the largest entertainment venues.