What are the degrees or levels of Heaven?

In Islam, Heaven and Hell are split into many different levels depending on the actions perpetrated in life, where punishment is given depending on the level of evil done in life, and good is separated into other levels depending on how well one followed God while alive. The gate of Hell is guarded by Maalik who is the leader of the angels assigned as the guards of hell also known as Zabaaniyah. TheQuran states that the fuel of Hellfire is rocks/stones (idols) and human beings.Although generally Hell is often portrayed as a hot steaming and tormenting place for sinners, there is one Hell pit which is characterized differently from the other Hell in Islamic tradition. Zamhareer is seen as the coldest and the most freezing Hell of all; yet its coldness is not seen as a pleasure or a relief to the sinners who committed crimes against God. The state of the Hell of Zamhareer is a suffering of extreme coldness, of blizzards, ice, and snow which no one on this earth can bear. The lowest pit of all existing Hells is the Hawiyah which is meant for the hypocrites and two-faced people who claimed to believe in Allah and His messenger by the tongue but denounced both in their hearts. Hypocrisy is considered to be one of the most dangerous sins, and so is Shirk.