Wandering around, newly re-employed, by the first library I worked in professionally. Only it's a lot bigger (even though in the same building), and the Children's Room is now downstairs from the basement.

Wildly disproportionate sizes of things around me: near things are very small, as if they were far away and distant things are huge. (I have this sometimes even now when I change eyeglass prescriptions. It's related to my messed up depth perception.)