Walled old town with colorful facades, vibrant nightlife, and Caribbean coastal energy. Both cities blend Spanish architecture with Afro-Caribbean culture.

Spanish fortress heritage, music-filled plazas, and that same Caribbean passion for life after dark. Both have UNESCO old towns.

Spanish fortress (Castillo de San Marcos), narrow brick streets, and coastal charm. Both are living historic cities, not just museums.

Pelourinho's colorful buildings echo Old San Juan's palette, plus that same infectious music culture and fortress history.

Entire city is a fortress, honey-colored stone buildings, harbor views, and that same intimate scale perfect for wandering.