Panama City Top 103. Panama Viejo ruins
For an even older city-within-a-city, check out the ruins of Casco Antiguo, on the eastern edge of downtown. Dating to 1519, the city was the first permanent settlement on the Pacific Ocean, and eventually attained a population of 10,000 people. In 1671, captain Henry Morgan (Captain Morgan of the rum) sacked and burned the city, leaving it the shell of ruins that tourists can visit today. Climb the bell tower of the ruined cathedral for a nice view of the city to the west.