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Cleveland 's Rockefeller Park and Cultural Gardens could be forever changed if the city follows through on plans to modify a brook running through the 241-acre park , which John D. Rockefeller donated to the city in 1896 . As a result of the unexpected immigration of many people to Bursa from Balkan countries and other parts of Turkey and the high birthrate amongst the new residents , the city 's character has changed from a city focused on agriculture , handicrafts and tourism to a city with problems such as social unease , environmental pollution , unemployment , and cultural conflicts . Between them and the huge American flag added since September 11 as a patriotic but peculiar backdrop to the nightly pirate-ship battle in Treasure Island 's Buccaneer Bay , Las Vegas has changed from a city of neon to one of drapery . At the last minute the meeting format was changed so the city could manipulate the group to go last , TV cameras left for 10pm news - we were on afterwards . All of that appears to have changed since the city was granted Unesco World Heritage status , and the city government now seems to acknowledge its royal patrimony . There are important changes that the city of Denver can make to ensure the health of its natural ecosystem .