Street Art- They have a lot of great graffiti in Zaragoza. It's fun to just walk around and discover so many cool pieces.
Museo del Teatro de Caesaraugusta- An archeology museum with artifacts from the Roman times surrounded by the ruins of an ancient Roman theater. It is a fantastic museum to visit. They also have ancient Roman exhibits at Museo de las Termas Publicas and Museo del Foro de Caesaraugusta, and they are all worth visiting.
Aljaferia- A gorgeous medieval Islamic palace with intricate design.
Escuela Museo Origami Zaragoza- A fun paper art museum that has extremely impressive origami displays.
Museo Goya- What I love about this museum is that it has a large collection of Goya's etchings, which are a commentary on his time; funny, dark, and have always been my favorites.
La Cueva en Aragon- I am a mushroom eater, and these are some of the best I've had. Very casual where you order at the counter, stand up at a small table, and devour the fantastic garlic soaked mushrooms.
La Migueria- I was told I should try migas here, and it was my first time having migas. A very filling dish that you can get many different ways. I heard that it is traditional to have it with grapes, so that's how I had mine, with grapes and cheese.
Casa Lac- A gorgeous fine-dining restaurant with rich food and luscious wine. It was a wonderful meal. I didn't make a reservation, but I got there when the place opened and they were kind enough to seat me.
La Clandestina Cafe- A charming place to grab a coffee and some breakfast with excellent service.
La Republicana- A busy bar/restaurant with antique objects filling every space. It's a great place to spend some time with the locals, and have a drink.
Hotel Goya- A comfortable hotel in a great location. I always have good luck when I stay at a hotel that's named after an artist. It has a 70's vibe in the halls, and some decoration too, which is always an extra bonus.