Georgia designated the live oak as official state tree in 1937. Coastal towns and cities in the south often have hurricane-resistant live oaks arching over the streets in historic neighborhoods:

Excerpt from Georgia Resolution:

"... Whereas the live-oak, being a tree indigenous to the soil of our State and especially flourishing along the Coastal plains and islands thereof where the first settlers and founders of this State resided, and which tree is so closely associated with our early history, and particularly with the lives of many famous Georgians such as General James Edward Oglethorpe, John Wesley and Sidney Lanier; ..."

"Angel Oak" (pictured at top of page):

The Angel Oak is a Southern live oak tree located in Angel Oak Park on Johns Island (one of South Carolina's sea Islands). This live oak tree is estimated to be over 1400 years old. It stands 65 feet all (20 m) and the crown covers an area of 17,000 square feet (1,580 m² ). The tree's longest limb is 89 feet (27 m) in length.

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Links:

State Trees - 50 States List