This image also shows one example each of the three known player classes.

From left to right: Titan, Hunter, Warlock.

The enemies in the background being fought by the Warlock were referred to by Bungie as "space zombies".

IGN referred to this area as the Black Garden, saying Bungie described it as "a surreal, fantastic place". Bungie would not say where the location was or give any other information about it.

The Vex are described as time-traveling robots. They appear to take several different forms.

The mysterious, spherical Traveler hovers above humanity's last city after saving them from destruction by alien forces.

The missing portions near the bottom of the sphere almost makes me think that humanity has in part built their city by removing pieces of metal from the Traveler.

As the huge, unknown artifact of Destiny, the Traveler would seem to be taking on the titular role in Halo.

Beneath-- and possibly reaching up towards-- the Traveler is the Tower, presumably a non-combat area where Guardian players will interact with each other.

This location is on Earth's moon. Destiny as described as taking place among the ruins of humanity's golden age of dominance over their solar system. Locations like these may be long-lost human installations or habitations.

Bungie describes Earth's moon in Destiny as "broken" and this image shows large cracks. That's what you get for storing nuclear waste on the dark side, guys. (Just kidding.)

The Citadel is described as a place where bad guys live; all bad guys need an evil lair. In the foreground, two Guardians face off against some Vex.