Believed to have been built by Lord Parasurama who reclaimed Kerala from the sea, the Vadakkumnathan Temple is one of the oldest in the State. A classic example of the Kerala style of architecture, the temple has many decorative murals and pieces of art. Exquisite murals on the Mahabharata adorn the walls of the shrine. This is the venue of the world famous PooramFestival celebrated annually in April-May. The fireworks at the Pooram are a spectacular sight.