At one point, Vienna was the largest German speaking city in the world, but as of 2013, it is second next to Berlin.
Not only has the city been called 'The City of Dreams' because Sigmund Freud was from there, but it's also called the 'City of Music' because more famous composers have lived there than any other city in the world.
Since 2005, every year, Vienna has been the world's number one destination for international congresses and conventions.
Is a landlocked country located in Central Europe
is the most populated city in the United States of America, and considered one of the world's cultural capitals.
The capital city of Germany.
is the 29th largest city in the United States, and considered to be one of the most environmentally friendly in the world.
is the third largest city in the United States by population, and the eighth most economically important city in the world.
The largest city and capital of Azerbaijan.
The capital and largest city in Peru.
is the capital city of Texas, and was one of America's fastest growing cities at the turn of the millennium.
The capital city of England and the United Kingdom.