Nakajima and Kaz managed to burn down several buildings. Such as the following...
A basketball court
A Subway
Two Starbucks (on accident)
A Wendy's
Three McDonalds (once by mistake resulting in a week long accident and whispering 'I'm Lovin' it' at random times )
A Club
A WholeAss Walmart
Five mini Targets
A Neighborhood
Abandoned Hospital
Mitsuki's Treehouse by complete accident