Cartagena's city centre to me comes across as an amusement park, with hip restaurants and over expensive shops. So not the Colombia I've seen in the rest of the country. The bohemian Getsmani neighbourhood still has some authenticity left. Its has artsy streets and a vibrant nightlife, although it is the domain of backpackers. In the next years I am afraid, it probably will evolve into the next amusement park.
Colombia has it all! High Andean mountains, beautiful Carribean beaches (think: white sands and turqoise waters), thick Amazon jungle, mysterious archeological ruins and cobbled colonial villages.