Tricky Obelisks

[FanaticPharaoh]

Looking for help interacting with the four obelisks in the south west part of the temple. I'd assume we can't find a bookcase that tells us how to disable them. The sunken city is driving me mad.
Awesome map

 

[SpasMaster]

Use Inspect on them.

 

[FanaticPharaoh]

Use Inspect on them.

Well I feel like an idiot. Thanks for the help!