Riga, Latvia

Riga holds the world's densest collection of Art Nouveau architecture, with over 800 ornate facades concentrated in its central districts. A full three-course meal at a top-rated local restaurant averages just €15, undercutting a typical London pub lunch by more than 60%. This Baltic capital outperforms #4 Tallinn in both dining costs and architectural variety, while offering 30% lower accommodation prices than the average Western European city, making it a superior choice for culture and affordability.