It varies a lot on your definition of best, I personally consider the brazilian Interlagos GP the best, it's a tecnical, fast and very demanding track, but the San Marino GP is by far the hardest, in the 2006 season i think, from the 24 cars that started the race, only 9 finished.
The highest recorded temperature in Fremont, CA was 110°F on September 1, 2017.
There´s no F1 track in Finland.
Currently the belgium track
35.5 degrees was recorded at Manchester airport in July 2006.
India
The hottest day ever in January in Wee Waa NSW was 1/16/1979 when the temperature reached 43.4 degrees Celsius.
The hottest temperature ever recorded in Manchester, UK is 34.5°C (94.1°F) on 1 July 2015.
There are currently 19 tracks that are classified as a Formula 1 track but historically there have been close to a hundred different circuits.*As of 2013
The Suzuka circuit in Japan, measuring 5.773 KM
50degrees
The hottest temperature ever recorded in Palm Springs is 123°F (50.5°C), which occurred on July 29, 1995.
America's Hottest Cheerleaders - 2013 Hottest Pro Cheerleaders L-A- Auditions 1-1 was released on: USA: 1 March 2013