A: 24/12 Vienna (open 01/12)

Sophie56

Day 9 - Two exclusive Riedel glasses
Third image on mine with mottled blue sky and clock tower
Door #9 - vienna.info

Sophie56

https://www.wien.info/en/now-on/winter-in-vienna/vienna-adventcalendar
Day 10 - An espresso cup set.
Door #10 - vienna.info
guglhupf

Sophie56

Day 11 - A travel set with a pocket umbrella.
Door #11 - vienna.info
Answer: Image 1 on mine with a hint of green in the roof

Sophie56

Day 12 - Original fan and fragrant Viennese soap
Door #12 - vienna.info
Answer: Hofburg

Sophie56

Day 13 - Vienna travel set
Door #13 - vienna.info
First photo of a Ferris Wheel

Sophie56

Day 14 - Vienna-themed Thermos Flask
Door #14 - vienna.info
Glühwein

Sophie56

Day 15 - A shoulder bag.
Door #15 - vienna.info
First image with chevron style pattern roof

Sophie56

Day 16 -Vienna City Card
(enjoy free travel on public transport and over 200 discount offers on your next visit to Vienna for two - from culture and shopping to leisure and mobility. Valid for one year).
Door #16 - vienna.info
More than 200

Sophie56

Day 17 - A make-up bag and hand spray made from essential oils.
The Viennese Christmas market
https://www.wien.info/en/now-on/winter-in-vienna/vienna-adventcalendar/17-door-790870

Sophie56

Day 18 - Set of a notepad, pen and cotton tote bag
https://www.wien.info/en/now-on/winter-in-vienna/vienna-adventcalendar/18-door-790890
Carp