Vienna's cathedral has survived many wars and is now a symbol of the city's freedom. The Gothic cathedral was first built in 1147 and its most recognizable characteristic, the diamond-patterned tile roof, was added in 1952.

Melk Abbey was originally a palace, and it shows. Home to a Benedictine community from the 11th century to the present day, the current Baroque ensemble was built in 1736.

Hailed by some as the most perfect Renaissance building in the Germanic countries, Salzburg's cathedral has a marble facade, twin symmetrical towers and the font in which Mozart was baptized.

Rebuilt between 1717 and 1724, this cathedral is roofed with domes and features a lavish Baroque interior. The main attraction is the high altar painting of Mary of Succor by Lucas Cranach the Elder.

Nestled high in the Alpine mountains of Austria, the Shrine of Our Lady of Mariazell is the most popular Marian shrine in Central Europe. The shrine centers on a miraculous statue of the Virgin Mary discovered by a monk in 1157.

This was originally built in the 14th century as the parish church of the imperial court. Several royal weddings took place here and Hapsburg hearts are preserved in urns.

Built in the 13th century over an earlier church, this small edifice next to the cathedral is interesting for its venerable age and mixture of styles. The semicircular choir features elaborate vaults and nine chapels.

Constructed in 1694 by the famous Baroque master builder Fischer von Erlach, Holy Trinity Church has a sweeping facade that is among the most excellent examples of the unexaggerated Baroque style.