"The Guest House"
I'm not sure it's worth it to buy a ticket to get inside the house. It's just nice to walk around it. The neighborhood is nice, it has a lot of German style old houses... for a person who lives in Beijing where there are only boring architectures, this is a nice change.
Then again, the ticket to get inside the house is only 2 dollars. so..
"The Beer Brewery"
It's a museum. 7 dollars entrance fee, you get two tiny cups of beer.
The history is interesting.
I got this on the street by the coast. They are cooked on a grill stand. I didn't have them to brush the sauce on it cause the sauce jars have been outside the whole day without refrigerating. Seafood in a restaurant might be safer. But this didn't cause any problems for me, perhaps I have a strong stomach.