Subterranean royal dwarven crypts and magma-flooded halls beneath Old Ironforge (Entrance at 27.6, 47.8). Invaded by Dark Iron forces led by Durgen Dirgehammer.
Blighted royal crypts and necromantic catacombs beneath the Capital City of Lordaeron (Undercity entrance at 72.4, 11.4), home to Witherfang, The Baron, The Abandoned, Rath'mael, Bjork, and Viktor the Vile.
Overrun Titan dig site and primordial marshland caverns in central Wetlands (Entrance at 47.8, 56.2), guarded by Saltspine, Shadetooth, Highland Horror, and the awakened Relic Guardian.
Spell-shattered streets, Violet Hold ruins, and ley-line sanctums beneath the arcane dome in Alterac Mountains (Entrance at 8.5, 59.2), featuring 9 encounters culminating in the Shade of the Archmage.
Submerged ancient troll and naga temple ruins in WoW: Forever, ruled by Zul'Alai, Var'Taka, Deathless Marrow, and Min'loth the Serpent.
Pitch-black catacombs and Upside-Down Sinners beneath Karazhan in Deadwind Pass.
Rowdy level-60 WoW: Forever tavern instance featuring high-stakes arena brawls against Deathulus and Crushfist Bloodbreaker.
Epic 20-player raid on the sacred slopes of Mount Hyjal in WoW: Forever, featuring 13 encounters from Bandalar and the Time-Lost Battalion to Nythus the Dreambound and The Wild King.
Subterranean druidic barrow sanctuary in WoW: Forever corrupted by the Emerald Nightmare. A 20-player raid featuring 8 bosses culminating in Sonya Darkhallow.