Top 25 Largest Things Possible:
25: Loudhouseverse
24: Marioverse
23: Minecraftverse
22: The Barrel
21: Barrelplex
20: Barrelplexian
19: Barrelplexianite
18: Barrelplexianiteron
17: Barrelplexianiteronth
16: Transcendentem
15: The Box
14: Mega Box
13: The White Plain
12: The Absolute Space
11: Perpendicularultraverse
10: Infinity
9: Transfinity
8: The Void
7: Blue Void
6: Teal Void
5: Cyan Void
4: Existence
3: The Maze
2: The End
1: The Alternate

Inspired By Many Users