So, of course, we answered (having done much the same thing this time last year).
The weather was perfect (cold, dry) for lots of walking and nose following and just soaking the city in, with dips in and out of museums and galleries, cafes and vegan restaurants, churches, the national library, the market, the odd chocolate shop.
All went exceedingly well.
And then the wheels fell off.
At 7:30 a.m. at the airport, the penny dropped that I'd booked flights home for a month later. (I could have quite happily stayed on for another four weeks but there were cats and a Boo to collect from their respective carers).
Long story short, instead of returning to the north east via Manchester as planned, we ended up taking the scenic route by way of Berlin and Heathrow. The animals had an extra day's holiday, we eventually fell over our doorstep at midnight and the bank account took a bit of a battering.
I still love Vienna, though, me.