Altar of the Depths

The Altar of the Depths is a Naga building that revives heroes. It is found during the Terror of the Tides, Curse of the Blood Elves and Legacy of the Damned campaigns from Warcraft III: The Frozen Throne Expansion.

It appears in the following missions:
 * The Broken Isles
 * Wrath of the Betrayer
 * Balancing the Scales
 * The Ruins of Dalaran
 * The Brothers Stormrage
 * The Search for Illidan
 * Gates of the Abyss
 * Lord of Outland
 * The Return to Northrend
 * A Symphony of Frost and Flame

Trivia

 * The Altar of Drowned Whispers in Stormsong Valley was originally called "Altar of the Deep" during the Battle for Azeroth beta.