Philip S.
Yelp
Absolutely brilliant and beautiful castle and view of Heidelberg. Visiting the outer grounds is free, but I recommend purchasing not only an entry ticket (7 Euro), which allows entry to the Courtyard, Apotheke Museum, the World's Largest Wine Barrel, and a nice restaurant, but also participate in a guided tour (5 Euro extra), which allows entry inside the castle itself.
The outer grounds is perfect, if you are on a budget. It is a large area that encompasses the courtyard. One has a phenomenal view of Heidelberg, and on a sunny day, it looks stunning. Without going on the guided tour, one wouldn't know the significance of the gardens at the rear beyond the ticket office. The style was Persian influenced and an elaborately grand project, which was left incomplete, but the remnants are still beautiful to see, such as small water features, and fountains. In the 17th Century, it was considered the "8th Wonder of the World". Not bad eh? Unfortunately, time and war has not been too kind to Schloss Heidelberg. Mostly destroyed by Louis XIV after he laid claim to the Palatine dynasty as he was the brother-in-law to Princess Palatine Elizabeth Charlotte, the granddaughter to Frederik V of Heidelberg, but was denied. This was during the Nine year War.
The courtyard access has a great restaurant that mostly serves form of Wurst, but also Schnitzel, which I sampled with Potato Salad, and it was lovely. I have tasted better Schnitzel and Kartoffelsalat, but it was tasty. In the courtyard, one can access the are where the largest Wine Barrel is held, and it is massive. Once again, the joy of the guided tour is that on is instilled with a greater knowledge of the barrel. In the 17th Century, it was healthier to drink wine than water, so wine was consumer more, hence the big barrel. Also great for parties!
The Apotheke Museum can be find in the courtyard, and is another fascinating museum, narrating the development of medicine, trade, discovery, impact on Germany, introduction of regulation and practice, and overall evolution of the pharma industry in Germany today. Definitely worth a visit.
The guided tour is fantastic to truly get a full understanding of the history and see parts of Schloss Heidelberg that one wouldn't otherwise see.
Beautiful.
It is easy to get to from Altstadt, either by walking (although it is an upward trek) or by the Bergbahn (6 Euro or so), which also takes one to Königstuhl.