The Wiener Riesenrad constructed in 1897 is a 64,75-metre tall Ferris wheel at the entrance of the Prater amusement park in Vienna. It is one of Vienna's most popular tourist attractions, and has become a symbol for the city.
The Austrian National Library is the largest library in Austria, with more than 12 million items. The library is located in the Neue Burg Wing of the Hofburg in the center of Vienna.