California's Death Valley holds the record for being the hottest place on earth.
The highest air temperature ever recorded claims to be in July, 1913 and was measured 56,7grad Celcius!
In Midsummer the temperatuer measures average around 47grad Celcius, and is the driest place in the US.
Death Valley located 86mtrs below sealevel what can explain the extreme heat. Make sure if you want to visit this place your vehicle is in good condition as getting stranded is not recommended :)