Tallinn is the capital and largest city of Estonia. It is situated on the northern coast of the country, on the shore of the Gulf of Finland, 80 km (50 mi) south of Helsinki, east of Stockholm and west of Saint Petersburg. Tallinn occupies an area of 159.2 km2 (61.5 sq mi) and has a population of 440,597. Approximately 32% of Estonia's total population lives in Tallinn.

Founded in 1248 but the earliest human settlements date back to 3000 years BC, making it one of the oldest capital cities of Northern Europe. Due to its important strategic location the city soon became a major trade hub, especially between the 14th to 16th century when it grew to be a key center of commerce within the Hanseatic League. Tallinn's Old Town is one of the best preserved and intact medieval cities in Europe and is listed as a UNESCO World Heritage Site. The city was known as Reval from the 13th century until 1918 and again during the Nazi occupation of Estonia from 1941 to 1944.

Tallinn is the major political, financial, cultural and educational center of Estonia. Often dubbed as the Silicon Valley of Europe, has the highest number of startups per person in Europe and is a birthplace of many international companies including Skype. Providing to the global cybersecurity it is the home to the NATO Cyber Defence Centre of Excellence. It is ranked as a global city and has been listed among the top 10 digital cities in the world.

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