Heroes was mainly filmed in Los Angeles and Santa Clarita, in California. The special effects team Stargate Digital were responsible for using CGI to make mock ups of the various locations seen in the show.
No, the series was filmed entirely in California.
Heroes - Korean TV series - was created on 2010-07-18.
Heroes - TV series - ended on 2010-02-08.
Rescue Heroes - TV series - was created in 1997.
The duration of True Heroes - TV series - is 2700.0 seconds.
The duration of Heroes - Korean TV series - is -4500.0 seconds.
The duration of Rescue Heroes - TV series - is 1320.0 seconds.
True Heroes - TV series - ended on 2003-06-06.
True Heroes - TV series - was created on 2003-05-05.
It is mainly filmed in a studio in Cardiff and a castle in France but they do film in other locations
Friends was filmed in New york in the state and the series lasted for 10 years
It is set in Arizona, but I am not sure if it is Filmed there.