A Frankfurt suburb of about 20,000 just northwest of the city, Eschborn offers great views of the Taunus Mountains that lie just beyond. Many large corporations have constructed high-rise branch offices at Eschborn, including Deutsche Bank and Ernst and Young. The town is easily reachable by S-Bahn from Frankfurt, with the Altstadt and most of its old pre-suburban sights, including the Rathaus (Town Hall) and other historic buildings, within steps from the Eschborn station along Hauptstrasse.