Eureka, Utah
The city was named from the Greek word "eureka", meaning "I have found it!" The city and its history was explored on the show "Ghost Adventures" in 2018.
Europa (consort of Zeus)
It is common in ancient Greek mythology and geography to identify lands or rivers with female figures. Thus, "Europa" is first used in a geographic context in the Homeric Hymn to Delian Apollo, in reference to the western shore of the Aegean Sea.
As a name for a part of the known world, it is first used in the 6th century BC by Anaximander and Hecataeus.
The weakness of an etymology with εὐρύς ("eurus"), is 1. that the -u stem of εὐρύς disappears in Εὐρώπη Europa and 2. the expected form εὐρυώπη euryopa that retains the -u stem in fact exists.