We (all employees from the company where I work) took a 2 day trip to Budapest. Main goal was to have a short get-together to summarize this year, and do some planning for next year, but we also got to see the city (by day and by night)...
We started with a bus tour around the city, and visited the Christmas market. Afterwards we got on a boat to see the city by night. The trip ended the next day after eating at the Citadella.
Note: a link to the panoramic picture (warning, pretty big).