We stumbled upon Lower Belvedere, the gardens and then the upper palace last night as there were practically next door.
A couple of hours later and we had walked into the old city, past the opera, to Stephansdom and the horses pulling carriages by lantern light.
We stopped at one of the NorSee fish cafes for tea. Fresh fish in the middle of Europe in a modern cafe cum restaurant style without the wait.
Back to the room but too tired for the complimentary bottle of wine. Maybe tonight.