Additions to this list should be cities whose overall form (as opposed to individual neighborhoods or expansions) has been determined in large part in advance on a drawing board, or which were planned to a degree which is unusual for their time and place.
It is a misconception that virtually all cities and towns in Western Canada, which were created after the federal Dominion Lands Act of 1870, (the majority of all such cities), were planned.
Most Mexican cities founded during the period of New Spain were planned from the beginning.
Salisbury is not listed as the chequers were part of its medieval design.
The Manhattan Project was the successful effort by the U.S. government to develop an atomic bomb during World War II.