As Seen In Merrick Pilot Shorts
Heaven is one of the areas introduced in Merrick Shorts Pilot. Columns of pillars and angel statues are outside of the building, as well as a holy cross in the center of a fountain without water.
So far, only the exterior of Heaven has been shown.
After Merrick crash lands on Heaven, he finds a hidden storage room with loads of weapons. Testing out the weapons, he accidently knocks down a pillar supporting Heaven and causes it to tumble down to Earth.