"It’s not quite on the level of the Stephansdom cathedral itself, but architecture buffs will want to set aside some time for the SO/Vienna as well. Pritzker winner Jean Nouvel re-thought the typical hotel shape, changing the ho-hum rectangle into a celebration of geometry. Glass abounds, and the top-floor restaurant ceiling is clearly visible from street level, its riotous colors echoing the many-hued mosaics of the Stephansdom’s roof." - Tablet Hotels