Things to do in Vienna
Discover a hidden chapel beneath the streets
Why there’s a church room below Vienna’s streets remains a mystery, but the incredibly well preserved, subterranean chapel of St. Virgil shouldn’t be missed. Dating from around 1250, the chapel was only discovered when contractors were digging for the Metro. Visit the museum website for tours.
Marvel at the world’s most beautiful gallery
The Secession Gallery (tel: +43 1587 5307; www.secession.at) near Karlsplatz is surely the world's most beautiful. Even at more than a century old, its white walls and golden adornments remain as stylish today as they ever did. Designed by Joseph Maria Olbrich, the gallery continues to display fine art.
Spot fish living in a WWII bunker
There's something fishy about the Vienna Haus Des Meeres (tel: +43 1 587 1417; www.haus-des-meeres.at) and it's not the thousands of different species of marine life on show. In a public park, this aquarium was a former World War II Flakturm used to try and shoot down RAF bombers.
Visit another country without leaving the city
Well, sort of. The United Nations complex (tel: +43 1 2606 03328; www.unvienna.org) in Vienna exercises extraterritoriality, which means it's international territory. Several UN agencies allow fascinating hour-long tours of their offices and give visitors the chance to see exhibitions about the UN's work and some interesting 1970s architecture.
Visit the weirdest church ever
In rolling woodland outside Vienna lies the Church of the Most Holy Trinity (tel: +43 650 332 4833; www.georgenberg.at), a place of worship that looks like a giant stack of Jenga blocks. Opened in 1976, the so-called Wotruba Church is a brutalist masterpiece designed by the artist Fritz Wotruba.