Armenia is the smallest of the former Soviet republics, bounded by Georgia, Azerbaijan, Iran, and Turkey. It has a population of nearly 3 million people and was formerly under Soviet rule. The dominant religion is Armenian Apostolic Christianity practiced by 94.7% of the population. Azerbaijan is located on the western shore of the Caspian Sea, bounded by Georgia, Russia, Iran, and Armenia. It has a population of over 9 million and was also formerly under Soviet rule. The dominant religion is Islam practiced by 93.4% of the population. Both countries have a long history and contain many cultural and natural wonders.