Because of it’s location, scenery, and historical value, Hoover dam is a major attraction for visitors to Nevada and Las Vegas, an hour drive from Vegas, you will get to the Hoover dam, which is truly a magnificent feat, specially when you take into account when it was built. Mead lake was formed as a result of the Hoover dam blocking off the flow of water from the Colorado river. The architecture of the parking garage for visitors to the Hoover dam is cleverly designed to match the local rocks without looking out of place.