Leipzig is the largest city in the federal state of Saxony, Germany. It has been a trade city since at least the time of the Holy Roman Empire. The city sits at the intersection of the Via Regia and Via Imperii, two important Medieval trade routes. The city was once one of the major European centers of learning and culture in fields such as music and publishing.
Leipzig today is an economic center and the most livable city in Germany. Oper Leipzig is one of the most prominent opera houses in Germany, and Leipzig Zoological Garden is one of the most modern zoos in Europe and ranks first in Germany and second in Europe according to Anthony Sheridan. Leipzig is also currently listed as Gamma World City and Germany's "Boomtown".