I don't have a soft spot in my heart for festivals, but I'll make an exception for Yiasou Greek Festival. For a mere $2 admission, you have access to several dances, lectures and on Greek history, culture, and religion, and displays on all things Greek. The food is quite amazing and the vendors stalls sell everything from Orthodox crosses to swords.
I tried the gyro and baklava sundae...SCORE! The gyro was packed with meat and fresh, tangy tziki sauce. The baklava sundae is three scoops (maybe more) of vanilla ice cream with baklava crumbled on top! If you want real Greek meal, they have serve a literal platter of food in the church's community center-lamb, chicken, Greek lasagna,and salad. There's also a tent behind the church that just sells Greek desserts, whoa! I had visions of sugar plums dancing in sync to Greek music that night.
I'm amazed at the time spent organizing this festival. There are numerous people staffing the information booths and explaining the displays on Greek history, like the Greek and Persian War. Don't worry, they play the movie "300" in the background and have little toy soldiers to re-enact the battles for you non-history buffs. The church is an exotically beautiful Byzantine structure that makes the perfect setting for such a festival. If you live in the Charlotte area, you must go at least once in your life.
TIPS: Bring cash (the ATM's charge a $3 surcharge) and ride with a group of people to conserve the limited parking. Be prepared to walk a good distance to the entrance.