Swedish conquerors established a sea fortress named Rågövik (“Rye Island Bay”) to the deep and wind-sheltered Paldiski Bay in the 17th century. Later it became a Russian naval base in the 18th century. Peter the Great planned to build a giant military port of there. The plan envisaged that the mole would offer shelter for the entire vast navy of Russia. Construction of the military port started in 1716. Despite the efforts of thousands of convicts, the planned 2-km-long giant facility could not be completed and even the completed part was quite soon destroyed by autumn storms.
In 1762, the Russians (Catherine II) renamed the sea fortress of Rogerwiek into Baltiyskiy Port (Baltic Port), and the Estonian pronounciation, Paldiski, became the official name in 1933. In 1962, Paldiski became a Soviet Navy nuclear submarine training centre. With two land-based nuclear reactors, and employing some 16,000 people, it was the largest such facility in the Soviet Union. Because of its importance, the whole city was closed off with barbed wire until the last Russian warship left in August 1994. Russia finally relinquished control of the nuclear reactor facilities in September 1995.
References: DirectFerries.co.uk, North Estonian Klint
The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.