Knowledge is everywhere.
Foundational component, phenomenon, and principle of the fabric of the universe,
knowledge is manifested through everything in the universe, physical or virtual.
Listing those manifestations is impossible even theoretically, but simple examples may help ease understanding.
For one, spiders obviously know and learn how to make a web, why, and where.
For another one, it is clear that DNA stores massive amounts of accumulated knowledge,
at least enough to create problem solving beings, like humans, for example.