11 Underrated European Capitals Worth Visiting in 2025

5. Tallinn, Estonia: A Digital Pioneer

Tallinn, Estonia’s capital, is a city that seamlessly blends medieval charm with cutting-edge technology. Known for its well-preserved medieval old town, Tallinn offers a glimpse into the past with its cobblestone streets, Gothic spires, and ancient city walls. However, Tallinn is also a pioneer in digital innovation, often referred to as the “Silicon Valley of Europe.” The city’s e-residency program and tech startups have put it on the map as a leader in digital transformation. Visitors can explore the city’s history at sites like Toompea Castle and St. Olaf’s Church, while also experiencing its modern side through tech-focused tours and events. Tallinn’s unique fusion of history and technology makes it a fascinating destination for travelers.