Fox's Lounge
Fox's Lounge opened in 1946 at 6030 S Dixie Highway in South Miami, started by Hank and Betty Fox as a sandwich shop and liquor store. It became one of Miami's more legendary bars over the following decades, known informally as the darkest bar in Miami. The pitch-black booths gave politicians and locals a place to drink without being particularly visible, which was part of the appeal.
The bar closed in 2015 after nearly 70 years. It sat dark for almost seven years before reopening under Lost Boy and Co. as the fourth set of owners. The prime rib and cold martini format came back with it.
It's not a speakeasy in the hidden-entrance sense, but it has that history of deliberate obscurity that earned the comparison.