This is the Monument to the Heroes of the Peninsular War in Porto. It is set in the middle of a huge and busy round-a-bout in the district of Boavista.
The Peninsular War was fought between 1808 and 1814 with the British and Portuguese on one side and the French on the other. Spain was also involved with fighters on both sides. The war ended in victory for the Portuguese and British, which is what this monument celebrates. On top of the 20 metre column is a lion, representing the Portuguese and British, dominating an eagle, representing the forces of Napoleon.