Haydnhaus

Constructed in 1893 as a venue for German folk dramas and plays, the building was later used for operettas. Since 1985 it has hosted German-language and international musicals.

On one side of the 2nd Worldwar bunker there are routes to climb high up until its roof with great views into the roofs of Vienna. The routes are usually hard and require some endurance. The alpine club organises courses for beginners and intermediate. On the other side there are boulder problems set. The outdoor climbing in middle of a historic city makes this a favorite choice for many climbers during the hot season.

A marvelous zoo, with a rain forest glasshouse, tiny apes, aquariums with sharks, and terrariums with reptiles and venomous snakes. Other highlights include an interesting exhibit of Mediterranean sea life and the aquarium's beloved sea turtle, "Puppi." The apes and birds are allowed to freely mingle with the visitors, but don't attempt to touch or feed them. It is in one of the surviving air raid defense towers from WWII, a so-called Flakturm. During wartime, the building provided fire control for Vienna's anti-aircraft artillery, housed some of the first radar equipment, and is designed to withstand a direct bomb hit, an earthquake, and wind speeds up to an overpressure of ten bar. Its former gun emplacements are now a platform on top affording nice views over the roofs of Vienna.

A Cineplexx theater with plenty of choices including original versions. The cinema opened here in 1905. According to seat numbers it is one of the biggest in Vienna.

The theatre projects mostly English films in original version.

The staircase connects the Mariahilfer and the Gumpendorfer Strasse. It was built in 1870.