It's called "Day of the Alberta street" - when all the street returns to the beginning of the 20th century. You will meet people dressed in costumes of that time, hear retro music, take part in old style divertissements. And not a single car around... :)
Originated from a small fishermen village, for centuries Riga has been an important part of the trade chain between Russia and Western Europe. A lively crossroad of cultures and backgrounds for over 800 years, the historical centre of Riga has accumulated an impressive cultural baggage and today is justly included in the UNESCO’s World Heritage list.