Circa is the brainchild of Derek Stevens, a casino magnate who also owns Golden Gate Hotel & Casino across Fremont Street and the D Las Vegas a few blocks east. Stevens was the first local hotelier to put a Bitcoin ATM on his casino floor (at the D). He was one of the first casino operators to open sports books 24/7. Most nights, he dons a shiny blazer and spends a few hours hanging out with customers at his bars.