>>2789786
Hi! Actual person from Milan here. I'm not sure what you mean by "historical sights", so here's a short list of things that I think are worth visiting. I will try to put items in each list in an order going from most obvious / touristy to most obscure / esoteric.
Churches:
>The Duomo (duh)
>Sant'Ambrogio (one of the most interesting examples of paleochristian architecture in the world)
>San Maurizio al Monastero Maggiore (the "sistine chapel of Milan", picrel)
>San Bernardino alle Ossa (very metal)
>Portinari Chapel in Sant'Eustorgio (pretty rainbow ceiling)
>San Satiro (the ur-example of architectural trompe-l'oeil/optical illusion)
>Santa Maria delle Grazie (most people go here to see Leonardo's Last Supper, book that in advance)
Museums:
>Castello Sforzesco (also includes several interesting museums, don't miss the Pietà Rondanini, Michelangelo's last unfinished sculpture)
>Pinacoteca di Brera (most famous art museum in the city, mostly medieval to early modern art)
>Pinacoteca Ambrosiana (huge collection including original sketches and notebooks by Leonardo)
>Museo Poldi-Pezzoli (very interesting collection including works by Botticelli)
>Galleria d'Arte Moderna (large collection of Italian 19th century art)
>Museo del Novecento (one of the biggest collections of 20th century art in Italy)
Other historical buildings:
Other miscellaneous historical buildings and sights:
>Galleria Vittorio Emanuele II (duh)
>Monumentale Cemetery (architecturally beautiful, has a huge number of elaborate tombs and mausolea)
>Ca' Granda (once Milan's reinaissance-era hospital, today the main campus of the city's university)
>Centrale Train Station (arguably the finest example of fascist-era architecture in Italy)
>La Scala Theatre (arguably the third most important theatre in the world after the Opera in Paris and the Metropolitan in NYC)
>Arco della Pace (triumphal arch to commemorate Napoleon's conquest of Italy)
(1/2)