Google 

Prague

Prague castle

Prague is the capital and largest city of the Czech Republic. Situated on the Vltava river in central Bohemia, Prague has been the political, cultural and economical center of the Czech state for over 1000 years. The city proper is home to nearly 1.2 million people, while its metropolitan area is estimated to have population of over 1.9 million. Prague is widely considered to be one of the most beautiful cities in Europe and belongs to the most visited cities on the continent. Since 1992, the historic centre of Prague has been included in the UNESCO list of World Heritage Sites.
Since the fall of the Iron Curtain, Prague has become one of Europe's (and the world's) most popular tourist destinations. It is the sixth most visited European city after London, Paris, Rome, Madrid and Berlin. Prague suffered considerably less damage during World War II than some other major cities in the region, allowing most of its historic architecture to stay true to form. It contains one of the world's most pristine and varied collections of architecture, from Art Nouveau to Baroque, Renaissance, Cubist, Gothic, Neo-Classical and ultra-modern. 

Charles bridge

Astronomical clock

Some of the most known sights are, Old Town Square, The Astronomical Clock, The picturesque Charles Bridge, New Town  with its busy and historic Wenceslas Square, Malá Strana (Lesser Quarter), Prague Castle (the largest castle in the world) with its St. Vitus Cathedral, Josefov (the old Jewish quarter) with Old Jewish Cemetery and Old New Synagogue, The Lennon Wall,  The museum of Heydrich assassination in the crypt of the Church of Saints Cyril and Methodius, National Museum, Petřínská rozhledna, an observation tower on Petřín hill, which is nearly a 1:5 copy of the Eiffel Tower, The Dancing House (Fred and Ginger Building), Places connected to writers living in the city, such as Franz Kafka (One popular destination is the Franz Kafka museum). 

Public transport infrastructure consists of an integrated transport system of three metro lines (with 54 stations in total), trams, Prague Tram System, buses, the Petřín funicular to Petřín Hill and a chairlift at Prague Zoo. All services have a common ticketing system, and are run by The Capital City of Prague Transport Company.

Weblinks:

http://www.praha.eu http://en.wikipedia.org/wiki/prague

 

Castle