Tower

The Tower is a location in the City, located along the outer wall. The Tower contains living quarters for the Guardians and the Overwatch District, providing the place where Guardians return under the shelter of the Traveler where Guardians can meet up when not on mission. Guardians can visit vendors, turn in quests, and interact with their fellows in the stronghold. The Tower houses class-focused areas for Titans, Warlocks, and Hunters to each meet with their fellows. The Tower also has a spaceship hangar.

It is said that in the past, the City once possessed a dozen Towers, but the others all fell to the Darkness.

Gameplay
The Tower acts as the main hub for Guardians in between missions or Crucible matches. It is one of two "Social Spaces" available in the game, the other being Queen's Bay in the Reef (available in House of Wolves). At the Tower, Guardians can interact with fellow Guardians, or the many NPCs present.

Activities

 * Purchase gear from vendors
 * Sell artifacts to the Cryptarch
 * Acquire bounties
 * Store/retrieve gear from player vaults
 * Receive rewards for story missions, completed bounties, and public events
 * Create fireteams with other Guardians

Tower Watch

 * Banshee-44, Gunsmith
 * Eris Morn, Crota's Bane(Requires The Dark Below)
 * Kadi 55-30, Postmaster
 * Master Rahool, Cryptarch
 * Tess Everis, Special Orders
 * Xander 99-40, Bounty Tracker

Hall of Guardians

 * Arcite 99-40, Crucible Quartermaster
 * Cayde-6, Hunter Vanguard
 * Commander Zavala, Titan Vanguard
 * Ikora Rey, Warlock Vanguard
 * Lord Shaxx, Crucible Handler

Tower North

 * Eva Levante, Guardian Outfitter
 * Executor Hideo, New Monarchy Rep
 * The Speaker, Voice of the Traveler

Tower Hangar

 * Amanda Holliday, Shipwright
 * Arach Jalaal, Dead Orbit Rep
 * Roni 55-30, Vanguard Quartermaster
 * Lakshmi-2, Future War Cult Rep

Traveler's Walk

 * Lord Saladin, Iron Banner Handler
 * Petra Venj, Queen's Emissary

Other

 * Xûr, Agent of the Nine(Appears randomly in one of six locations during weekends)

Dead Ghost Locations
See Dead Ghost for details. The Tower features four Dead Ghosts, one of which can only be obtained when the Traveler's Walk is open.

Trivia

 * Players can interact with two different balls that can be found in the Tower Watch. The first is a soccer ball and behaves as one when kicked. The second is a larger purple ball that can be kicked much higher, but it descends much more slowly. Prior to patch 1.1.2, the purple ball used a low-resolution polyhedral model with a matte texture; after the patch, the purple ball gained a higher-quality model with a metallic texture, and also lights up when kicked.
 * There is a secret button on the rafter near the post office. It activates the fan on the roof of the post office, briefly launching any Guardian standing on it into the air.
 * In the lowest part of the hangar, Guardians can find a small lounge with couches and a few NPCs built into a decommissioned cargo ship. Aside from the occasional visit by Xûr, this area originally had no use and could not be interacted with. After patch 1.1.2, a machine in the lounge was updated so that it could be activated to briefly play a random piece of music.
 * If one quickly heads to the hangar when they first arrive at the Tower they will see their personal spaceship landing in the hangar.
 * The gyro-like machine seen in the Speaker's chamber is called the Vitalis. Its purpose is unknown.

List of appearances

 * Destiny