Agonía is home to Alajuela Cathedral, so why not stop by during your stay in Alajuela. It's also full of great shops and restaurants, so you can spend the afternoon having a wander.
If you like strolling among the stalls, you might want to head out to Central Market Alajuela in Carmen and take in the atmosphere. Splash some more cash at City Mall and Plaza Real Alajuela.
Juan Santamaria Historical Museum is just one of the attractions in Agonía, Alajuela so you might want to stop by during your trip. If you want to experience more of the culture Alajuela has to offer, head to Juan Santamaría Park, Estadio Alejandro Morera Soto, and City Mall.
