In the 1st district, marvel at a breathtaking light installation by the artist Olafur Eliasson on the façade of the Verbund headquarters. The artwork can be seen on permanent display in Vienna every day at dusk, when 32 fluorescent lamps cast light on the artificial fog climbing up the side of the building and spreading over the pavement. You can visit the exhibition in the Vertical Gallery by appointment (call ahead) every Wednesday at 6:30pm as part of a free art talk.

The grand, fairy-tale castle-like main building in Timrå was built in 1883–1885 as a summer residence for the timber magnate Fredrik Bünsow, who was one of Sweden's most powerful timber barons at the time. The architects were Isak Gustaf Clason and Fritz Eckert. Clason is known for designing the Nordic Museum and Hallwyl Palace in Stockholm. The beautiful castle (or Villa Merlo, as it is actually called) is now a cultural heritage site and houses Svenska Cellulosa's central archive. In the summer, you can take a guided tour to see the many rooms and halls that still retain their former glory. Even the garden alone is well worth a visit.

Carol Reed’s “The Third Man” (1949) remains a landmark of film noir, iconic in its atmospheric portrayal of post-war Vienna, the Anton Karas’s haunting zither score, and Orson Welles’s performance as the enigmatic Harry Lime. Voted the greatest British film of the 20th century, it captured a city divided by Allied occupation — a world of shadows, rubble, and moral ambiguity — while showcasing both Vienna’s grand landmarks and its gritty sewers. Operated by passionate private collectors, The Third Man Museum displays over 3,000 artefacts, from original scripts and film props to period documents illustrating Allied-occupied Vienna (1945–1955). The collection spans 16 rooms, offering deep context into the film’s production and its historical backdrop. Guided tours (75 minutes, in English) delve into cinematography, the impact of the zither score, and the city’s complex post-war reality. Note: cash only for entry. The above-ground Third Man Walking Tour, offered by independent guides, visits key filming locations in the Innere Stadt, including Josephsplatz and Mölkerbastei. Using film stills and audio clips, it recreates the film's mood while exploring Vienna’s historic centre. It focuses on the architectural and urban settings that shaped the story, without entering the sewers. Another tour, 3. Mann Tour – Sewer, descends into the functional sewers where the film’s climactic chase was shot. You’ll traverse walkways above flowing wastewater while projections of film scenes play on tunnel walls. It’s an immersive, if somewhat damp, experience. Tours are popular and require advance booking.