Kazakhstan, a Central Asian country and former Soviet republic, extends from the Caspian Sea in the west to the Altai Mountains at its eastern border with China and Russia. Its largest metropolis, Almaty, is a long-standing trading hub whose landmarks include Ascension Cathedral, a tsarist-era Russian Orthodox church, and the Central State Museum of Kazakhstan.

Kyrgyzstan, officially the Kyrgyz Republic and also known as Kirghizia, is a country in Central Asia. Kyrgyzstan is a landlocked country with mountainous terrain.

Tajikistan is a country in Central Asia surrounded by Afghanistan, China, Kyrgyzstan and Uzbekistan. It’s known for rugged mountains, popular for hiking and climbing. The Fann Mountains, near the national capital Dushanbe, have snow-capped peaks that rise over 5,000 meters.

Turkmenistan is a country in Central Asia bordered by the Caspian Sea and largely covered by the Karakum Desert. It’s known for archaeological ruins including those at Nisa and Merv, major stops along the ancient trade route the Silk Road.

Uzbekistan is a Central Asian nation and former Soviet republic. It's known for its mosques, mausoleums and other sites linked to the Silk Road, the ancient trade route between China and the Mediterranean. Samarkand, a major city on the route, contains a landmark of Islamic architecture