What constellation marks direction toward the center of the galaxy?

What constellation marks direction toward the center of the galaxy?|||I presume you mean the Milky Way Galaxy? Its center lies in the direction of the constellation Sagittarius, but very close to the border of both neighbor constellations Scorpius and Ophiuchus.|||Sagittarius|||Sagittarius. In fact, The star identified as Sagittarius A is located directly in front of the core of the Milky Way. You'll need a celestial map.