Cartagena, Colombia is one of the most beautiful colonial cities in Latin America. It's a colorful, tropical city with so much to do, see and eat. I went for 4 days last November which I thought was plenty of time. I enjoyed Cartagena so much I could see me buying a condo there to retire. Suffice to say, I loved Cartagena! This old, historic city creates a colorful backdrop for vivid photos. The buildings are painted a wide array of colors and had bright bougainvillea vines passing through some of them. The colonial architecture was gorgeous from the ornate churches to the unique door knockers.  I spend my days just walking around aimlessly and went to a few rooftop terraces for a breeze. Cartagena is a walled city because its surrounded by a walled fortification built in the 1600s to protect from pirate attacks. Today the city walls are a UNESCO heritage site. The walls stretch for 6.8 miles around the old city. Cartagena was considered one of the most important ports of America throughout the entire Spanish colonial period. It's definitely a city worth putting on your list to visit!