Salzburg is an Austrian city on the border of Germany, with views of the Eastern Alps. The city is divided by the Salzach River, with medieval and baroque buildings of the pedestrian Altstadt (Old City) on its left bank, facing the 19th-century Neustadt (New City) on its right. My top recommendations:

1. Tour the city and admire its architecture.
   

   
   

   
2. Join the very fun and nostalgic Sound of music tour (link) – Mirabell Gardens and Pegasus fountain where the song ‘Do-Re-Mi’ was filmed, Leopoldskron Palace where in the film we see the captain’s backyard and private palace gardens, Hellbrunn Palace for the Gazebo, Nonnberg Abbey which is still an active women’s convent nowadays. In this convent the “real” Maria was a novice and also got married to Baron von Trapp, Lake Fuschl and Lake Wolfgang, and Mondsee for the wedding chapel scene.
   

   

   

   
3.  Salt mine tour (link) – You get to wear traditional miners’ clothes on this tour and you take the train deep into the mountain. You learn a lot about salt-miners and you also get to take a fun slide down to the salt lake followed by a boat to cross, all underground!
   

   

   

    

4. Continue on to Lake Königssee as part of your salt mine tour. This is a natural lake in the extreme southeast Berchtesgadener Land district of the German state of Bavaria, near the Austrian border. So yes, you do end up in Germany on this tour!
   

   
5. Untersberg Cable car to see a bird eye view of Salzburg and all the mountains that surround the city.
   

   

Others: Try the famous Sacher Torte desert at the Sacher cafe