To help compare sizes of different surface areas, here is a list of areas of the order of 1017 square metres, i.e. between 100 billion km2 and 1 trillion km2. See alsoareas of other orders of magnitude.
... Hill
Working Textile Museum[?], Derwent Valley Mills
Northumberland
Grace Darling Museum, Bamburgh
Northumberland Fusiliers Museum[?] in Alnwick ...