With the release of iOS 11 in September, Apple started adding indoor maps of airports and shopping malls. However, it’s been difficult to find which locations featured these maps until now.
An updated listing of airports and malls with indoor maps is located at this link.
Among the locations now being supported include Las Vegas McCarran International Airport LAS, Portland International Airport PDX, and Vancouver International Airport YVR, plus malls in Boston, Chicago, and Washington, D.C.
Here’s a look at two maps:
Besides iOS, you can also find the indoor maps via Maps on macOS High Sierra.