Wearing latex gloves and a white coat, restorer Carla Medina holds in her hands part of Colombia's archaeological heritage. Since leftist Gustavo Petro took office in Colombia last August, his presidential plane has criss-crossed the globe collecting archaeological artifacts in foreign hands, and bringing them home. The effort, also aided by the naval flagship Gloria, has seen at least 560 pre-Columbian relics returned from countries such as the United States, Spain, Britain, Belgium, Germany and Mexico, according to the government. IMAGES AND SOUNDBITES