It takes less than an hour to get to the Hoover Dam from Las Vegas, and the road is in good condition. Before entering the dam, there are police officers with live ammunition to check the car. There are two parking lots. The outermost one is free. If you only plan to look far, you can stop here. The dam is also free of charge, just walk to the opposite highway bridge, only to visit the interior. The dam was built in 1936, up to 221 meters, and it was built more than 80 years ago to imagine how strong the United States was.