Grey's Anatomy Filming Locations
See also: Station 19.
Grey's Anatomy was filmed in Los Angeles & Seattle in the United States of America.
Calamigos Ranch
Dr. Bailey & Dr. Warren's Wedding
From episode #909 "Run, Baby, Run" & #910 "Things We Said Today".
Source: I Am Not a Stalker
VA Greater Los Angeles
Seattle Grace
Some scenes were filmed at the VA center to take advantage of their huge glass windows.