Possible Clues:

• Flying island in 'Gulliver's Travels'
• Flying island visited by Gulliver
• Flying island in Gulliver's Travels
• Gulliver's flying island
• Ridiculous place, a place found within US city
• A place in US city where everyone flew?
• Island king could move from city to place close to sea
• Gulliver's flying city
• ''Gulliver's Travels'' flying island
• American city established by a progressive island