Less than an hour south of Palm Beach and anchoring the county's south end, upscale Boca Raton has much in common with its fabled cousin. Both reflect the unmistakable architectural influence of Addison Mizner, their principal developer in the mid-1920s. The meaning of the name Boca Raton (pronounced boca rah-tone) often arouses curiosity, with many folks mistakenly assuming it means "rat's mouth." Historians say the
probable origin is Boca Ratones, an ancient Spanish geographical term for an inlet filled with jagged rocks or coral. Miami's Biscayne Bay had such an inlet, and in 1823 a mapmaker copying Miami terrain confused the more northern inlet, thus mistakenly labeling this area Boca Ratones. No matter what, you'll know you've arrived in the heart of downtown when you spot the historic town hall's gold dome on the main street, Federal Highway. Much of the Boca landscape was heavily planned, and many of the bigger sights are clustered in the area around town hall and Lake Boca, a wide stretch of the Intracoastal Waterway between Palmetto Park Road and Camino Real (two main east–west streets at the southern end of town).