Ismaili Centre, Dushanbe is also notable for some of its sustainability features, such as earthquake-resistance and the use of an innovative water-source heating and cooling system. Ismaili Centre, Dushanbe The Ismaili Centre, Dushanbe is one of six such centres world-wide and is an Ismaili jamatkhana. It was the fifth purpose-built Ismaili Centre, and the first in Central Asia. Dushanbe is the capital of Tajikistan, a country characterised by an unusually extensive Ismaili population: the region of Badakhshan, which spills over northeastern Afghanistan, eastern Tajikistan and North Pakistan, is the only part of the world where Ismailis make up the majority of the population.
Capital city of one constituent nation will also be the capital of the state overall, such as London, which is the capital of England and the United Kingdom. Similarly, each of the autonomous communities of Spain and regions of Italy has a capital city, such as Seville or Naples, while Madrid is the capital of the Community of Madrid and the Kingdom of Spain as a whole and Rome is the capital of Italy and the region of Lazio. In the Federal Republic of Germany, each of its constituent states (or "Länder" - plural of "Land") has its own capital city, such