What is inside heaven?

The Bible does not tell us what exactly there will be. We know that we will be with God and his followers, and that people will worship him.

Answer:

The view of Christianity is as above with some dissenting voices such as Mark Twain who wrote of Heaven in "Letters From Earth", describing it as a very dull place and not at all satisfying. There are other thoughts depending on your religion (see Link):

• Vikings: Valhalla (heaven) for death in battle a rollicking drinking party; Hel (peaceful place) for most
• Many Eastern Religions: Reincarnation until enlightenment then a satisfying non- existence
• Christian Science: Not a place "... but a divine state of Mind in which all the manifestations of Mind are harmonious and immortal."
• Epicureanism: No afterlife. The soul dissolves at death.
• Ancient Greeks: A shadowy existence without end
  
• Islam: An eternity of pleasurable experience
• Jehovah's Witnesses: Some go to Heaven some stay on the "New Earth"
• Judaism: VAried belief from no Heaven/Hell to life in the world to come (conditions not specified)
• Rastafari: A return to Eden
• Wicca: A permanent walk in the park in "Summerland"