Vienna was the crown jewel and capital of the Austro-Hungarian Empire . Much more than that though, Vienna was the home of the House of Habsburg , one of Europe's most important royal houses. How important were they? Well the Holy Roman Emperor (ruler of all the Germanic States) from 1438 to 1740 was a member of the Habsburg Dynasty , and the Family ruled pretty much the whole of Continental Europe at one point, save for the territory of the Kingdom of France. Because of this, Vienna is a city of great cultural, architectural, and historical significance as evidenced by how beautifully well planned everything is. * Most of Vienna's imperial sights can be found along the Ringstrasse , a circular road which was built to replace the city walls, using money paid by the English for the safe release of King Richard the Lionheart (from the Crusades), who was held hostage by the Austrians.