Columbia is located in northwestern South America and has diverse geography including the Andes Mountains, Pacific Ocean, Caribbean Sea, Llanos plains, and Amazon Rainforest. The population is around 45 million people who primarily speak Spanish and practice Catholicism. The culture has been influenced by indigenous groups, Spain, Africa, and more recently the United States and includes music styles like cumbia and vallenato. Spain first explored the region in the early 1500s and founded many cities, though Colombia gained independence in 1824 after several revolutions and civil wars. The country has faced issues with drug cartels and violence but security has improved in recent decades.