Registration is possible for all (adult) Austrians, but also for homosexuals from abroad. Proof of birth registration and proof of citizenship are required. Important for foreign guests: Proof of residence abroad and marital status must be provided. And: If you do not have sufficient knowledge of German, an interpreter must be called in. The application to establish a registered partnership can be made at the earliest six months before the desired date. You can find more information here.
If you're not ready yet - Vienna is also the best place for a marriage proposal. There are plenty of romantic settings here: whether in a carriage rented exclusively for you at the Vienna Giant Ferris Wheel; on a romantic horse-drawn carriage ride or in a whirlpool room decorated with roses and rose petals at the Boutique Hotel Donauwalzer. We are sure that your loved one can't help but say YES.