Frankfurt am Main is one of the world's most important communication centers. A huge airport operates here, and numerous international concerns have their headquarters. The city itself cannot boast of many monuments because it was almost completely destroyed during World War II.
The Frankfurt, crossed by the river, is now one of the main economic centers of Germany. The office district located on the river, called Mainhattan is the largest concentration of skyscrapers in Europe. There are some of the tallest office buildings in the European Union, Commerzbank Tower and Messeturm.
The modern buildings hide the tiny Old Town rebuilt after the war. It is centered around the market and consists of stone, late Gothic and Renaissance tenements with new stylized buildings. The most important buildings in this part of the city include the town hall, the Stone House, which today houses an art gallery and the church of St. Nicholas.