Las Vegas is the most populous city in the state of Nevada, United States. It is one of the top tourist destinations in the country, especially for its casinos and gambling. The Strip, which contains many famous hotels and casinos, is the most photographed and visited street in Las Vegas. While in Las Vegas, visitors can find entertainment from casinos to famous landmarks to unique natural scenery like the Grand Canyon nearby. However, the document warns that the casinos are designed to keep visitors there as long as possible and spend all their savings without noticing time passing.