Frankfurt's full name is Frankfurt-am-Main, which means "Frankfurt on the Main River." Germany's fifth-largest city, Frankfurt also boasts the world's seventh-highest quality of life, according to Mercer Human Resource Consulting Worldwide's Quality of Living Survey.
Frankfurt is one of Germany's oldest cities, and it is also the location of the European Central Bank. As such, a lot of European business goes on in this historical city -- so much so that it has earned the nickname "Mainhatten." The proper name is derived from the Germanic tribe of the Franks called "Franconofurd." The famous word "frankfurter" comes from a type of pork sausage called "frankfurter würstchen" that is popular in the city.
The history of Frankfurt dates back to the first century. From 1562 to 1792, German kings and emperors were crowned in both Aachen and Frankfurt because the city was so important to the Holy Roman Empire. The site of their coronation was Frankfurt Cathedral, which is still the main church of the city.
Frankfurt was heavily bombed during World War II, killing roughly 5,500 residents and destroying the historic city center. The city center has been rebuilt since then. Writer Johann Wolfgang von Goethe was born in Frankfurt in 1749, and his home is currently a museum. After being built in 1880, the Alte Oper opera house was one of the major opera houses in Germany. It was damaged during World War II, after which it earned the nickname "Germany's Most Beautiful Ruin." It was renovated in 1981.