My spouse and I are traveling to Vienna in early September for 10 days. We arrive on a Saturday and anticipated spending Saturday and much of Sunday exploring Vienna (and possibly taking a brief day trip to Bratislava that Sunday). From Monday - Friday mid-afternoon, I will be in a conference while my spouse travels around the city. We deliberately scheduled free time after the conference from Friday evening to the following Monday evening, as our flight back to the US departs on Tuesday morning.
This is our first time in Austria, and while we love visiting palaces, museums, and other cultural spots in large cities, we also enjoy hiking and seeing beautiful landscapes and small towns. Ideally, we would like to visit either Czech Republic or Hungary in addition to Austria and Slovakia, as well as Salzburg (I love the Sound of Music). Is this feasible given the time frame?