Daniel B.
Yelp
The Georgia World Congress Center, located in downtown Atlanta, is one of the largest convention centers in the world. It covers an almost unfathomable 4 million square feet in space, spanning 3 separate buildings. The GWCC is conveniently located between the Georgia Dome, Philips Arena, and the new Falcons stadium, so it pairs well with events happening at those venues, such as the SEC college football championship.
I've been to the GWCC for a variety of events. The earliest event I remember attending was the 2002 NCAA Final Four fan fest (the year Maryland won). I really got to know the GWCC well the following year at the 2003 NBA All-Star Jam Session (Michael Jordan's final All-Star game). Atlanta hosted NBA All-Star Weekend that year and the GWCC was the site for the Jam Session fan fest. Since I was (and still am) a huge NBA fan, I was like a kid in a candy store. The NBA on TNT crew (Ernie Johnson, Kenny "The Jet" Smith, and Charles Barkley) set up a temporary studio and broadcasted live from the floor of the GWCC.
The rooms at the GWCC are cavernous and expanse. The space where Jam Session was held was the same space used by the NCAA for its similar fan fests in 2002, 2007, and 2013. I attended the fan fests every year they came to Atlanta. There's enough space to fit multiple basketball courts, games, sponsor booths, and mini food courts. At the 2003 Jam Session, the Celebrity Game was played inside the GWCC and Nelly and Ja Rule had a concert there too. At both the NBA and NCAA events, players were on-hand signing autographs and taking photos with fans.
The SEC holds similar fan fests during football season and the ACC has held fan fests when the ACC basketball tournament has come to town. Since I've lived in Atlanta, the ACC fan fests have been held in 2001, 2009, and 2012. WWE WrestleMania XXVII hit the Georgia Dome in 2011 and with it, WrestleMania Axxess at the GWCC. Axxess is/was the WWE's fan fest equivalent. I went to WrestleMania that year, but passed on Axxess.
In addition to the sports-themed events at the GWCC, I have attended work-related, industry-specific conventions/trade shows such as the 68th annual NRECA (National Rural Electric Cooperative Association) meeting in 2010. It was interesting to go to that event and experience the GWCC in a professional environment. Several utilities, energy companies, and consulting firms were on hand with booths and displays of varying shapes and sizes. One company had a booth that was two stories high, to give you an idea of how high some of the ceilings can be.
In 2012, I went to the GWCC for an official Yelp event, the Yelp Helps! Launch Party (http://www.yelp.com/events/atlanta-yelp-helps). Over 20 local non-profit organizations were highlighted. Since this was an event smaller than the aforementioned festivals/trade shows, the party was held in one of the GWCC's "smaller" rooms. It was still plenty big though, with multiple vendors, in addition to the NPOs, live music, live animals (pitbulls, miniature pony), and dancing.
In 2015, I attended MomoCon, an anime, video game, and comic book convention, at the GWCC. 2015 was MomoCon's first year at the GWCC. It had originally been held on the campus of Georgia Tech and later moved to the downtown Hilton and Marriott hotels as the convention grew in size. I think the GWCC has been the best venue for MomoCon yet. This is for a variety of reasons and it's only natural because the building was designed with large events and conventions in mind.
MomoCon was held on all three levels (1, 3, and 4) of GWCC Building A. The large Sidney J. Marcus Auditorium on Level 4 was used for main events such as the costume contest. The bottom level (Level 1) was used for celebrity autographs/photographs, the Artist Alley and Dealers Room, and the Gaming Hall. Various rooms in Levels 3 and 4 were used for panels, screenings, and smaller activities and events. Everything was spacious and mapped out nicely to handle the crowds in excess of 15,000. Traffic flowed efficiently and there was plenty of room to take photos of the cosplays including the courtyard with greenspace outdoors between the GWCC and Omni Hotel.
The GWCC originally opened in 1976 with many new sections and major renovations occurring since that time. Even so, the overall architecture, design, and decor of the property feel a bit dated (the carpet, the walls, some of the windows). Newer convention centers just look a whole lot nicer, more modern and aesthetically pleasing. In the end, the GWCC does a fine job functionally - and that is to handle big shows with tens of thousands of attendees.
Plenty of parking is available at parking decks adjacent to and underneath the GWCC. I like to park in the Red Deck which is close-by and has reasonable rates. Be prepared to do a lot of walking because this place is massive.