The Old Town of Tallinn is set on a hill with the medieval buildings climbing up the slopes in almost every direction. It was founded in the 13th century and grew in size as it grew in wealth.At the top of the hill, the most important buildings were erected and this is where the political and religious power was wielded. The lower areas were mainly for residential and commercial buildings. Interestingly, that is still the case today.
One of the reasons the skyline of Tallinn is so recognisable from so far away is because of the number of churches built in the Old Town. Their spires rise up towards the sky from every section.
For a visitor, Tallinn’s historic center is a dream. It has been extremely well preserved and even the buildings destroyed by war or fire over the years have been faithfully reconstructed.
You can walk through the small streets of colorful houses, sit in the central square with a view of the impressive town hall, visit the churches throughout the town, or even walk along a stretch of the old city wall.
The relaxed Estonian capital is often frequented by day-trippers thanks to its enviable location on the shores of the Baltic Sea, making it a favorite port on cruise itineraries and easily accessible by boat from Helsinki. On land, it’s just a few hours from cities like Riga and St. Petersburg, and a great addition to an Eastern Europe road trip.
On Toompea Hill, you'll find the iconic, onion-domed Alexander Nevsky Cathedral, which is adjacent to the fuchsia-colored Toompea Castle.
Unlike many other capital cities in Europe, Tallinn has managed to wholly preserve its structure of medieval and Hanseatic origin. Due to its exceptionally intact 13th-century city plan, the Old Town was inscribed as a UNESCO World Heritage Site in 1997, joining the ranks of the world’s most recognized landmarks.
According to globeguide.ca, en.wikipedia.org