According to Official Guinness Records,
A sphere 12.52 m 41 ft 18 in in diameter, weighing 2,540 kg 5600 lb called Eartha was designed and built by Delorme in Yarmouth, Maine, USA in 1998 The globe which took two years to build, rotates and revolves on a specially specially designed cantilever arm and rotates on an axis. It is powered by two electric-powered motors, which are commanded by a computer. It represents the earth as it is seen from space and is housed in a three storey glass atrium.
For a complete list of 1998 records, please visit 1998 Guinness Records in United States.