In most religions, Heaven is a transcendental realm in which people who have died continue to exist in an afterlife. The term "heaven" may refer to the physical heavens, the sky or the seemingly endless expanse of the universe beyond, the traditional literal meaning of the term in English.
The term in English has also typically been used to refer to the plane of existence of an afterlife (often held to exist in another realm) in various religions and spiritual philosophies, often described as the holiest possible place, accessible by people according to various standards of divinity, goodness, piety, faith or other virtues.
Heaven in Family Guy is depicted in its medieval context as a land in the clouds ruled over by God.
It was mentioned in "Peter Griffin: Husband, Father...Brother?" that Heaven has a shortage of chairs.
In the third Stewie Griffin: The Untold Story segment "Stu & Stewie's Excellent Adventure", Brian is seen drinking in Heaven with Ernest Hemingway, Vincent van Gogh and Kurt Cobain discussing their deaths.
The guys enlist Death to take them to see God so they can find out why he causes the New England Patriots to lose in "3 Acts of God". He takes them to Heaven which they find out is like a "Sandals" resort and God is much like a harried innkeeper.