Photo: Gryffindor, CC BY 2.5 via Wikimedia Commons
Card catalogs may be an anachronism in today’s digital world, but this library had the first one in existence, invented by the Habsburg court librarian. Unlike the printed library catalogs of the past, bound into book form, the card catalog could be rapidly updated and the library kept up-to-date. This well-ordered reader's paradise has a collection that outshines many museums, thanks to its long association with the Habsburg imperial family. It gained an impressive collection when Emperor Josef II dissolved all the empire's monasteries – 300 manuscripts, 3,000 printed books, and 5,000 diplomata. The library's collection is approximately six million items strong and is the largest in Austria. It is a pioneer in digitalizing and placing its collection online. The oldest book in the collection is a fifteenth century Holy Gospels manuscript with scenes representing the four Evangelists (Matthew, Mark, Luke, and John) containing the coats of arms of the House of Austria, Styria, Tirol, and Carinthia, then ruled by Albrecht III, the book's owner.
The Austrian National Library is the largest library in Austria, with more than 12 million items in its various collections. The library is located in the Neue Burg Wing of the Hofburg in center of Vienna. Since 2005, some of the collections have been relocated within the Baroque structure of the Palais Mollard-Clary. Founded by the Habsburgs, the library was originally called the Imperial Court Library ; the change to the current name occurred in 1920, following the end of the Habsburg Monarchy and the proclamation of the Austrian Republic. The library complex includes four museums, as well as multiple special collections and archives.
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State Hall
This magnificent historic library was designed by Johann Bernhard Fischer von Erlach and built in 1726. As well as the spectacular room itself, you can see temporary exhibitions on various historical subjects.
Butterfly House
A tropical greenhouse with an amazing collection of live butterflies, will delight both children and adults.
Imperial Treasury; aka the Secular and Ecclesiastical Treasures
The best part of the Hofburg and an absolute must. It contains the Habsburgs' collection of jewels, crowns, and other valuables, perhaps the best on the Continent. Second only to a tour of the Kunsthistorisches Museum, of which the Schatzkammer is a part. There are 20 rooms of priceless treasures that give a fairly accurate representation of the ceremonial Habsburg court life over the centuries.
Chapel of the Imperial Palace
The original chapel of the Palace, built in Gothic style 1447-1449, was made over in Baroque style. On Sundays and Catholic holidays (of which the Austrians celebrate many), the Court Musicians perform here. This group is made up of members from the Vienna Boys Choir, as well as performers from the orchestra and choir of the Vienna State Opera. Tickets can be purchased online here.
Fantastic Realism Museum
An unusual museum dedicated to the work of the Vienna School of Fantastic Realism (Wiener Schule des Phantastischen Realismus), highlighting works by artists Ernst Fuchs, Arik Brauer, Rudolf Hausner, Wolfgang Hutter and Fritz Janschka. An extra section of the museum displays paintings by international artists, and the first floor is devoted to rotating special exhibits.
Loretokapelle / Hearts Crypt, Augustinian Church
Yet another example of the gruesome divide-and-conquer burial strategy of the Habsburg dynasty. It is said that other dynasties waged countless wars to acquire new lands, but "you, happy Austria, marry". Even in death, the Habsburgs placated three different churches with the honor of caring for their remains. The best known, the Kapuzinergruft, contains their actual bodies. St Stephens holds their innards (intestines and other parts taken out during the preservation process). But the Augustinerkirche holds, in the Herzgruft (Heart Crypt), all the Habsburgs' hearts. The tradition began in 1627 with Emperor Ferdinand IV, who wanted to "lay his heart at the feet of the Mother of God", literally. His heart, and those of his descendants, are preserved in silver jars which are carefully cared for by the Augustinian friars who run the church. When the renovation was underway it was found that the preservative in some of the caskets had evaporated over the years, leaving nothing but a dried-out, mummified heart.