Throughout history Harjumaa (area 4333 sq km, population 120 000, with Tallinn about 530 000) has, due to its location, been in the center of the important historical and cultural events of Estonia. Therefore the Harju County (former Revala County) also has the largest number of cultural monuments of all the counties. Historic Tallinn is the center of Harju County.
The most interesting sights of Harju County :The Bronze Soldier of Tallinn is a World War II monument in Tallinn, Estonia. The monument depicting an Estonian soldier in Soviet uniform.
Bronze Soldier of Tallinn was erected in the center of Tallinn in 1947 in the memory of the soldiers who died fighting for the USSR against nazi Germany. Enn Roos was the sculptor and Arnold Alas the architect.Many Estonians, including most members of Parliament and of the Estonian Government, are in favour of removing both the monument and the cemetery from the center of Tallinn despite protests by World War II veterans and the Russian-speaking Estonian community.Since the restoration of Estonian independence, World War II veterans and representatives of the Russian-speaking population have continued to gather at the monument on certain dates like May 9 (Victory Day) and September 22 (liberation of Tallinn from the German troops in 1944).
The Old Town of Tallinn, belonging to the UNESCO world heritage list, is one of the most well-preserved medieval towns in Europe. In the Middle Ages Tallinn was one of the biggest and mightiest towns in Northern Europe, as all the trade routes, without exception, between the hanseatic towns of Western Europe and Russia passed Tallinn. Due to its mighty fortifications Tallinn has never been destroyed in wars and as there are no wooden buildings, Tallinn has also never been burnt down. Perfect documentary material about the welfare of Tallinn has been preserved in the form of the account-books of the town council, churches and guilds and other documents of that time.
Also in Tallinn: Tallinn Zoo, Rocca al Mare Open Air Museum, Kadriorg Park and Palace, TV Tower
The pre-history of the Padise Convent dates back to the beginning of the 13th century, when the Padise Convent became a land property of the Dunamunde Cistercian Convent. Following the permission from the King Erik Menved in 1317 the erection of the grandiose complex of a fortified convent began. In the times of uprising Padise Convent was the centre of large estates. During the Uprising of Juriöö in 1343 the Convent was burnt down and 28 monks and lay brothers were killed.
 Jägala Waterfall (height – 8 m) is one of the highest and fastest flowing. Over thousands of years the falling water has worn out the edge of the limestone banks and as a result a steep-sided valley about 300 m long and 12-14 m deep has been created. The oldest written information about a water mill (the beginning of the 13th century) derives from this place. The best impression of the mightiness of the waterfall can be obtained in the period of high waters in spring and autumn.
Türisalu Bank is one of the most impressive places of the North Estonian limestone coast, towering up to 31 meters. A good view opens out to the Island of Naissaar and Vääna-Jõesuu. On the Landscape Reserve of the area grow many rare plants, including shrubby cinquefoil, fringed pink, black cotoneaster, etc.
 In Tuhala Karst Region (188 ha), the biggest Karst Region of Estonia, all typical forms of Karst are represented. The best known features of the region are the Witch Well, "boiling" at the times of floods, and Virulase Karst Cave (54 m), the longest Karst cave in Estonia - you can get to know the exciting Karst landscape on the 2,5 km walking trail.
А 1.8 km path starting from the Virve Crossroads leads to the biggest boulder of Lahemaa - Majakivi (the 3rd biggest boulder in Estonia), situated in the center of the Juminda Peninsula in the Lahemaa Nature Park. On the top of the peninsula a former rocket base and a monument for a shipwreck are situated.