Fodor's Expert Review Petřínské sady
For a superb view of the city—from a slightly more solitary perch—the park on top of Petřín Hill includes a charming playground for children and adults alike, with a miniature (but still pretty big) Eiffel Tower. You'll also find a mirror maze (bludiště), as well as a working observatory and the seemingly abandoned Svatý Vavřinec (St. Lawrence) church. To get here from Malá Strana, simply hike up Petřín Hill (from Karmelitská ulice or Újezd) or ride the funicular railway (which departs near the Újezd tram stop). Regular public-transportation tickets are valid on the funicular.
From the Castle district, you can also stroll over from Strahov klášter (Strahov Monastery), following a wide path that crosses above some fruit orchards and offers some breathtaking views out over the city below.