Modern Cities takes a look at the sunny side of the ditch, in a community entrenched in history, with a recent flair for modern homes and neighborhood compactness. Owing much of its existence to railroad magnate Henry Flagler, Atlantic Beach is Duval County's densest municipality and home to one of the region's most popular pedestrian friendly retail and dining districts. Join us as we stroll down this part of the Jacksonville beaches, known by the locals as 'AB', where 'everyone knows everyone' is no exaggeration.