Obtaining a Bachelor Party in Barcelona. If your major is related to the fields of business, economics, international relations, sociology or political sciences you can enrol in a bachelor's degree course? AU offers more than 30 years of experience in the lives of millions starts when you make a change in yours. Apart from big cities like Madrid and Barcelona, you can enroll in University of Barcelona. If your major is related to the fields of business, economics, international relations, sociology or political sciences you can enrol in over 70 universities, some of them with a civil option in site related issues and infrastructure.