The Basilica of Our Lady of Dolours is one of Thrissur's most striking landmarks, its white towers rising high above the city. The scale is the first impression, but the interior, chapels, and devotional activity make it more than a piece of skyline architecture.
It is worth visiting even if you are not focused on churches, because it reflects Thrissur's unusually layered religious landscape. Go respectfully, avoid service times if you only want to look around, and leave time to view the building from outside where its height and symmetry are easiest to appreciate.