Antigua is a city in Guatemala.
North/West towards Chimaltenango/Xela
Walk north past the stadium (the same street, basically, as the bus station and the market), heading towards Jocotenango. After about 500m, you'll get to a nice speedbump. If that doesn't work, another kilometer or so down the road is Jocotenango where there are more speedbumps and more traffic heading towards Chimaltenango.