The best areas to stay in Bilbao are the Ensanche and Casco Viejo, offering distinct experiences for different preferences.The Ensanche, known as the "new town," is the city's modern and commercial center. It's characterized by wide avenues, elegant 19th-century buildings, and the iconic Guggenheim Museum Bilbao on the riverbank. This area is ideal for travelers who appreciate contemporary architecture, high-end shopping, and easy access to cultural institutions. For couples, the Ensanche provides a refined experience with many upscale dining options and proximity to art galleries.Casco Viejo, or the "Old Town," is Bilbao's historic heart. This pedestrian-friendly district is a labyrinth of narrow streets, charming squares, and medieval architecture, centered around the Santiago Cathedral and Plaza Nueva. It's great for solo travelers who enjoy exploring local markets, traditional pintxos bars, and boutique shops.