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Photo: Ingvar Pärnamäe, Public domain via Wikimedia Commons
From the central square, stairs lead down to the "boulevard to the sea" as the street is named in both Estonian and Russian. The iconic view of Sillamäe, it looks more like a place next to the Black Sea, Lake Geneva or the Mediterranean than in Northern Estonia.
© OpenStreetMap contributors
Built in 2001 in modern style.
Built in 1987 to celebrate the 70th anniversary of the Russian revolution, which is stated on the plaque, it's one of the increasingly few Soviet monuments in independent Estonia. It depicts a worker lifting up an "atom" that is comprised of electrons but no nucleus.
Sillamäe muuseum
The local museum has a range of different exhibitions related to geology, oil shale and the related industry, daily life during different eras, music including radios, record players and instruments, a collection of dolls and various temporary exhibitions.
The town hall was built after the Second World War though unlike most other buildings from this era it's not entirely in Stalinist style but draws elements from Tallinn's old town too, in addition to the Kremlin in Moscow.