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.
Réka
Réka is an old Hungarian female given name from the 10th century. It is of Hun descent, originally being Rika, derived from the Turkic Arikan. Over time it changed into forms like Kreka or Rekam and eventually into Réka. Although it is very difficult to find an affectionate form, there are some which are commonly used, such as Rékuci, Réki and Rékus. Its Finnish cognate is "Riikka".
Reka is also the Slavic word for "river." Reka is also a Sanskrit name and a Maori name. In Maori, Reka means "sweet."