Answer:
1. En la ciudad.
Step-by-step explanation:
There is a house in the photo of the United States and apartments in the photo of Spain. The photo shows that apartments in Spain have a garden. Besides there is an apartment in the photo of the United States and there is a house in the photo of Spain. So the house of Spain is in the city. The answer to the question that says "¿Dónde está la casa de la foto?" (Where is the house of the picture?) would be "In the city".