How it has changed
Lens
Countries
Riga, founded in 1201, has one of the world's largest collections of Art Nouveau buildings. Latvia declared independence in 1918, restored it in 1990 after decades of Soviet rule, joined the EU and NATO in 2004, and adopted the euro in 2014.

Art Nouveau in Riga
Photo: Richardmaackphotography, CC BY 4.0