1) Fictional island 2) Imaginary place 3) Island visited by Gulliver 4) Land Gulliver visited 5) Mythical place 
Laputa is a flying island mentioned from the book Gulliver`s Travels by Jonathan Swift. It is a flying island about 4.5 miles in diameter, with an adamantine base, which its inhabitants can manoeuvre in any direction using magnetic levitation. ==Inhabitants== Laputa`s population consists mainly of educated people, who are fond of mathematics, as.....
noun a land imagined by Jonathan Swift where impractical projects were pursued and practical projects neglected
Named after Gulliver?s floating aerial island, this is a fictional construction introduced without foundation