The capital of Austria has 2.6 million inhabitants in the metropolitan area, a third of the population, and is its political, economic and cultural center.
The buildings and monuments with rich and imposing architecture present in the city show the importance of the Austrian Empire until the beginning of the 20th century.

As one of the examples of its wealth, the Belvedere Palace area can be presented, a complex of historic buildings set in a baroque park landscape with landscaped gardens and light fountains, covering a length of 1 km.
The buildings are made up of the Lower and Upper Belvedere, built by Prince Eugene of Savoy in the 18th century.
Most of these palaces and gardens are open to the public, with emphasis on the permanent exhibition in the Upper Belvedere, mainly with Austrian works of art, the most famous being: The Kiss, by Gustav Klimt, a painting from Viennese modernism.

But the city's biggest star is the Vienna State Opera, art on an industrial scale, with 10 months a year of daily performances, not repeating the program for more than two days, which requires complex logistics in changing opera sets. , generating 10,000 jobs and 100 million euros annually.

Its majestic building in neo-Renaissance style with 1709 seats, houses a great history that dates back to the 19th century, the time of Imperial Austria, and the imperial family's waiting room is still maintained, today rented for special events by companies and people willing to pay a small fortune.
Its most important annual event is the Vienna Opera Ball, when the rows of chains are removed and a new floor level with the 50 m deep stage is built, thus creating a grand hall.

At the back of the theater block is the Albertina Gallery, dedicated, since 1776, to the preservation and dissemination of one of the most important collections of graphic arts.
Albertina Platz (square) provides both a complete photographic frame of the State Opera and the beautiful neoclassical-style palace that houses the Gallery.

Another beautiful building to visit and photograph is the Karlskirche, a baroque church located on the south side of Karlsplatz. It is dedicated to Saint Charles Borromeo, one of the great counter-reformers of the 16th century.
Since Karlsplatz was restored as an ensemble in the late 1980s, the church has gained fame because of its dome and its two adjacent bas-relief columns.

One of the great references of modern architecture in the city is the campus of the Vienna University of Economics and Business, made up of eight main buildings, each designed by a different architect.
Without a doubt, the most impressive is the Library and Study Center, designed by Zaha Hadid Architects, a must-visit for lovers of architectural photography.

The aristocratic past of this beautiful city was not an obstacle for its administration to think ahead of its time, when in 1977 Hundertwasser was given the opportunity to realize his ideas in the field of architecture, allowing him to build a housing complex within the concept of " house for humans and trees", adding terraces with forests, in partnership with architect Peter Pelikan.
The Hundertwasser House was built between 1983 and 1985 and since then it has been featured in the international press and visited by millions of people.
Several terraces are accessible to the public, others are exclusive to residents and some are reserved for spontaneous vegetation. The house's grass and forest areas account for more than 100% of the floor plan, so what was taken from nature during construction was restored on the roofs (source: hundertwasser-haus.info).