Accession to the European Union have made Tallinn easily accessible to tourists. The picturesque old town, a UNESCO World Heritage Site, and the current novelty of the destination attract many tourists and facilities (hotels, restaurants) have developed to meet their needs. English is widely spoken within the tourist areas.

The main attractions are in the two old towns, Lower Town and Toompea which are both easily explored on foot. Eastern districts around Pirita and Kadriorg are also worth visiting and the Estonian Open Air Museum (Eesti Vabaõhumuuseum) near Rocca al Mare, west of the city, preserves aspects of Estonian rural culture and architecture. Toompea was once the home of the nobility and bishops of Estonia, occupying an easily defensible site overlooking the surrounding districts. The major attractions are the walls and various bastions, the Alexander Nevsky Cathedral  and the Lutheran Cathedral (Toomkirik). Lower town is one of the best preserved old towns in Europe and the authorities are continuing its rehabilitation after years of neglect. The "must see" sights include Raekoja plats (Town Hall square), the town walls and towers (notably "Fat Margaret" and "Kiek in de Kök") and St Olaf church tower (124 metres).