The question then, is do you want appropriate realistic looking scenery, or photoreal scenery.
Photoreal scenery will come the closest to looking like the area that you know, IF it's available for your area. More often than not, you'll have to fly 600, or more, meters above the ground level for it to even look just "ok".
There are some exceptions, though. This is one of my favorite flying areas at the moment.
Grand Canyon (Free) Works in FSX & Prepar3d.
And Death Valley (Free) Works in FSX & Prepar3d.
"Appropriate realistic looking scenery" can give you a VERY good feeling for an area. Like this;
Australia (Payware) Works in FSX & Prepar3d.
But most of what you know isn't going to be there. Roads, rivers, most lakes, and mountains will (usually) be where they should.
Unless you have a very slow internet connection, I'd suggest downloading the Flight Simulator X Trial Version directly form Microsoft. If you like it, then do as Sprocket suggests and get the get the FSX "Gold" edition.
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