Built by Henry Flagler in 1896 and rebuilt by his descendants after a 1925 fire, this magnificent Italian Renaissance–style resort helped launch Florida tourism with its Gilded Age opulence, attracting influential wealthy Northerners to the state. The hotel, still owned by Flagler's heirs, is a must-see even if you aren't staying here. Walk through the 200-foot-long lobby, which has soaring arched ceilings painted by 72 Italian artisans and hung with crystal chandeliers,
and the ornate Florentine Dining Room, decorated with 15th-century Flemish tapestries. Book a pampering spa treatment or dine on top of the Seafood Bar's whimsical aquarium counter, where leggy green starfish prance below your plate, and the $20 parking is free.