USA, Utah
Bonneville is a dried-up salt lake with an area of 412 km2, which is located in the northwest of Utah, USA. The lake formed about 32,000 years ago and dried up about 16,800 years ago. In some places, the depth of salt deposits reaches 1.8 m.
Precipitation creates a perfect surface, which you can see in the video. And in dry areas, the surface of the lake allows cars to develop speeds up to 1000 km/h.