La Scala Highlights is a term used to refer to the most famous and memorable performances at La Scala, one of the world's most renowned opera houses located in Milan, Italy. The two crossword solutions for this term are 'ARIAS' and 'duets', both of which refer to types of musical compositions. ARIAS are solo vocal pieces that are typically accompanied by an orchestra, while duets are two-part vocal pieces that are also usually accompanied by an orchestra. Both ARIAS and duets are commonly performed at La Scala, making them highlights of the opera house.