Breakdown of ¿Hay un museo en la ciudad?
un
a, an (masculine)
en
in / on / at
la ciudad
the city
haber
to be (there is / there are)
Questions & Answers about ¿Hay un museo en la ciudad?
Why do we use hay instead of está in this sentence?
Would hay change to a plural form if we asked 'Are there museums'?
Why didn't the word order change to make this a question?
In English, we swap words to make a question ('There is...' becomes 'Is there...?'). In Spanish, the word order for a yes/no question can be exactly the same as a regular sentence. You just add the upside-down and regular question marks (¿ ?) when writing, and make your voice go up at the end when speaking.
Ciudad doesn't end in -a or -o. How do I know it is feminine (la ciudad)?
In Spanish, nouns that end in the letters -dad (like ciudad, universidad, and verdad) are almost always feminine. That is why it uses the feminine word for 'the', which is la.