Cell membrane: The cell’s city wall
Cytoskeleton: The cell city’s transport system 
Cytosol: The cell city’s streets
Lysosomes: The cell city’s recycling plant 
Mitochondria: The cell’s city power station 
Nucleus: The cell city’s library 
Ribosome: The cell city’s factories 
Rough endoplasmic reticulum: The cell city’s industrial park 
Hope this helps!