Porvoo was first mentioned in documents in the early 14th century, and Porvoo was given city rights around 1380, even though according to some sources the city was founded in 1346. Porvoo is famed for its old town (Gamla Stan in Swedish), a dense medieval street pattern with predominantly wooden houses. The town was mainly destroyed by fire in 1760 and current buildings were built after that.
Today Porvoo old town is a pictoresque tourist attraction. Many of the boutiques and services are located on Jokikatu and Välikatu Streets and around the church, but it's also worth looking a bit further. In the sidestreets and lanes it's easy to take a step back in time and forget the modern world. The small idyllic parks and sleepy cobbled streets among the houses entice the visitors to linger and reflect on the past.
The Old Town came close to being demolished in the 19th century by a new urban plan for the city. The plan was cancelled due to a popular resistance headed by Count Louis Sparre.
The red-coloured wooden storage buildings on the riverside are a proposed UNESCO world heritage site. Already by the early 19th century the authorities understood the value of the old town, and so with the need for growth a plan was made for a 'new town' built adjacent to the old town, following a grid plan but with houses also built in wood.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.