About hospitals, 1 possibilities exist (like "Hospital El Sagrado Corazón").
In term of town halls you can find 1 places (like "Alcaldia Municipal"). For parks you have 1 places with "Parque" for example.
These are the principal streets: Calle 10, Calle 11, Carrera 10.
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on Fincaraiz.