Some of the many things that make Paris special:

The Eiffel Tower:

The Notre Dame and her flying buttresses and stained glass.

The Louvre museum

Don’t forget Paris has other museums too, my favorite is the Musee D’Orsay. An old train station filled with sculptures and paintings
winding streets filled with outdoor cafes and marvelous bakeries (boulangeries)
No matter the angle there is something to catch your eye in Paris