World best roller coaster

Long time ago I went to a colorful park called the dream park, the thing they are famous for is roller coaster. The owner of this park was a kind man from England called Peter he is 35 years he made this park with his friend called  Moss.  On 2011 they plan that they have to make a remarkable  roller coaster, two month later one designer come and help them. The designer tell them that " if you want an remarkable roller coaster you have to look at all the famous park and adapt it". Suddenly the idea pop up from his head and . It a raining day in the flash of light I saw a wonderful roller coaster.