San Lorenzo Fort

This fort on the coast of the Caribbean Sea was first built in the late 16th century by the Spanish to protect present-day Panama from pirates, and was rebuilt several times afterwards. To day it's in ruins and listed as a together with the fort in Portobelo. Since 2025 it's listed twice, as it's also the northernmost point of the world heritage The Colonial Transisthmian Route of Panamá, effectively the Camino de Cruces which connected the Atlantic and Pacific back in the day.