You can choose several landmarks all over the world like Buckingham Palace, The White House, The Vatican, Tower of London, Bath Abbey, Taj Mahal, Giza, Eiffel Tower, Hagia Sophia and the Stonehenge. Then, you can drag the tower (map pins) to attack the enemies (moving flag) that are moving along the blue tracks. Different towers have different colors, attack power and range. You don\’t see the towers fire but the enemies life bar are reduced when they step inside the range of the towers defending the track.