There is one place named Mount Challenger in Australia.
All places in the world called "Mount Challenger".
Gladstone (5)
Hamilton (5)
Kingston (5)
Gordon (4)
Windsor (4)
Newstead (4)
Cremorne (4)
Springfield (4)
Woodstock (4)
Darlington (4)
Rosedale (4)
Richmond (4)
Spring Hill (3)
Brighton (3)
Buxton (3)
Clare (3)
Mosquito Creek (3)
Stratford (3)
Bald Hills (3)
Homebush (3)
Inglewood (3)
Stonehenge (3)
Windermere (3)
Alberton (3)
Broughton (3)
Donnybrook (3)
Greenmount (3)
Laura (3)
Lyndhurst (3)
Mount Pleasant (3)