Postcard from the USA!

Today I got a nice postcard from the USA! The postcard shows a view of the city of Pittsburgh, which is located in Pennsylvania. Pittsburgh has a population of 300,000 people and is the second largest city in Pennsylvania. It is sometimes referred to as the "Steel City" because of its many steel businesses and it is also sometimes called the "Bridge City" because of its more than 400 bridges. The city covers almost 60 square miles and its downtown sits at the confluence of three different rivers. Thanks Derek!