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A classic onion-domed Russian Orthodox church, built 1894–1900, during the Russification period when Estonia was part of the Russian Empire. In 1928, when Estonia was independent, it was argued that the church is a symbol of oppression and architecturally non-suitable, therefore should be demolished. But it survived also the Soviet times, and now is used by the Estonian Orthodox Church of Moscow Patriarchate.
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Parliament of Estonia
Seat of Estonian Parliament (Riigikogu). The castle complex consists of several parts: the western wall and the towers of Tall Hermann, Pilsticker and Landskrone built by the Danes between 13th and 15th centuries; the classic style building of the government of the Estonian Governorate built 1767–1773 by the Russians, and the building of the Riigikogu from the 1920s. It's believed that already in the middle of the 11th century there was an ancient Estonian wooden fortress on the location.
Tallinna toomkirik
The oldest church in Tallinn, built as a Catholic church in 1229, but renovated and expanded many times since then. It became a Lutheran church in 1561.
Eestimaa rüütelkonna hoone
The green Renaissance revival building was erected in mid-19th century as the fourth consecutive home of the Estonian Knighthood, a congregation of essentially German nobles who pratically controlled Estonia up to its independence in 1920s. Since 1920s, it played host to the Foreign Affairs Ministry, National Library, and the art collections on display at Kumu. As of 2014, it is home of the Estonian Academy of Arts. The building is not open to the public as it is used for instruction and faculty work.
Niguliste kirik
St.Olaf's lookalike is at the other end of the Old Town. Heavily damaged in World War II and a fire in the 1980s, it is now an art museum and houses Bernt Notke's famous Danse Macabre from 1633.
Stenbocki Maja
Today, the Stenbock House is the seat of Estonia's government, but it was built as a courthouse in late 18th century, at the behest of the erstwhile Russian authorities. The Russian treasury eventually found itself unable to pay for the building, so the Count Stenbock, who erected the edifice, was left with it as his personal residence. The treasury was only able to buy it more than a century later, when it finally became the courthouse it was intended to be.
The Freedom Square is one of the main squares in Tallinn, featuring the simple and elegant St. John's Church from the 1860s and the contemporary Victory Column, erected in 2009 to commemorate the Estonian War of Independence of 1918-1920. The square looks especially spectacular at night, when the column is lit up.