Callahan is in the First Coast region. Understand Get in Get around See West Nassau Museum of History, 45383 Dixie Ave (in Callahan's former train depot), 30.564626°, -81.833023°, +1 904 879-3406. Sa 9AM-1PM. Local history museum with artifacts from around Nassau County. Free Do Northeast Florida Fair, US Hwy 1/23/301 at Musslewhite Rd (about 1.2 mi north of town), 30.591265°, -81.828257°, +1 904 879-4682. Annual fair takes place in October. Live entertainment, games, agricultural events, and more. Buy Eat Drink Sleep Royal Inn, 542403 US Hwy 1 (S Kings Rd between Dixie and Green Aves), 30.564769°, -81.831805°, +1 904 879-1600. Connect Go next