Clues:-

• This city of Estonia is situated on shores of Baltic Sea and is famous for its Town Hall.
  
• In 1219 this city was ruled by the Danish monarchy and in 1561 Sweden takes control of Northern Estonia.
• In 1710 Estonia became part of Russia and in 1991 this city became capital of an independent Estonia.
• In 2004, Estonia joined the EU.

Ans:- This is the city of TALLINN


Clues:-

• This city of Italy is a asalt water lagoon and is famous for Carnevale.
• In AD421, this city was founded on 25 March, Feast of the Virgin Mary.
• The 9th Century work began on the Basilica of St.Mark nd Doge’s Palace.
• In 1498 discovery of Cape Route to India marked start of this city’s economic and political decline.
• In 1797 , Napoleon’s invasion marked the end of the Venetian Republic.
• In 1966 devastating floods throughout the city drew international attention to need for restoration.
• In 2003 started the MOSE protection project here.
• Piazza san Marco and Doge's palace are famous monumnets here.
• Rising lagoon water , high tides and declining population is major problem here.
  

Ans:- This is the city of VENICE