Viennoiserie is a very specific part of pastry, and it is related to bakeries. It looks exactly like bread but it’s, actually, not. To distinguish which is which, viennoiseries are drier than most bread. Viennoiseries are made from flour, eggs, butter, milk, cream, and sugar, so it tastes richer than bread. The dough is laminated and glazed, so it looks shiny.
Despite its difficult and strange name, you probably can find viennoiseries nearby because it’s everywhere. The examples of famous viennoiseries are croissants and pain au chocolat. You can take this advice, ET Mates: it is best to enjoy it with a cup of tea or coffee in the morning.