#3 – Death Valley
California’s Death Valley is one of the most dangerous places on Earth because of the area’s extremely hot temperatures during the summer months. The average temperature in Death Valley during the summer months is 56.7 °C (133 °F).
What’s even more surprising is that this area can get extremely cold in the winter. So stay away from the Death Valley during the summer and winter months. Hundreds of people have lost their lives here due to extreme heat waves.