show·piece 
/ˈʃoʊˌpi:s/ noun
plural show·piec·es /ˈʃoʊˌpi:s/ noun [count] 1 : something that is the best or most attractive thing being shown
▪ The museum's showpiece is a painting by Picasso. 2 : something that is seen as an excellent or outstanding example of something
▪ The house is an architectural showpiece.
▪ The museum's showpiece is a painting by Picasso.
▪ The house is an architectural showpiece.
