A veces (sometimes) nosotros vamos a los museos en la ciudad.
The term "museos" in Spanish refers to "museums" in English. A museum is an institution that preserves and exhibits objects, artifacts, artworks, or scientific, historical, cultural, or educational items for public viewing and learning. Museums play a crucial role in preserving and showcasing aspects of human history, culture, art, and science.
So, The correct Spanish vocabulary term to complete the sentence is a veces, which means "sometimes". The complete sentence is: A veces nosotros vamos a los museos en la ciudad.