Neon lights, casinos and over-the-top attractions make Las Vegas the ultimate man-made destination in the United States. Situated in southern Nevada, east of the California border, Las Vegas is formed from several Clark County communities, including Henderson and North Las Vegas, which is home to the Las Vegas Motor Speedway. Gambling is not the only reason that tourists visit Las Vegas, as it is found close to several natural areas, including Lake Mead National Recreation Area to the southeast near Boulder City and the Grand Canyon, easily visited on an overnight, day or helicopter tour. Those wanting to try their luck or take in amazing entertainment should head to the Fremont Street Experience, a pedestrian walkway that spans five blocks from the Las Vegas Strip to Main Street. At the Strip are an array of outrageous sights that families can even enjoy, including Azure in the Aquarium in the Silverton Hotel, the Fountains of Bellagio and the Secret Garden at the Mirage.