Discovering Griffith Park: A Local's GuideLOS ANGELES TIMES BESTSELLER People all over the world have seen Los Angeles's famed Hollywood sign and the iconic domed Griffith Observatory. Both are part of Griffith Park, a place visited by more than 10 million people each year more than Yosemite and Grand Canyon National Parks combined. Rugged and vast, the 4,511 acre Griffith Park encompasses a sprawling 70 mile long network of trails, ranging from paved paths through manicured landscapes to