Blackrock Spire is an old-world (previous raid) instance located inside Blackrock Mountain. Blackrock Mountain can be accessed from Searing Gorge and Burning Steppes (there's an entrance on either side of the mountain).
The instance is split into two, connected parts.
The first, Lower Blackrock Spire, has a section with Humanoids (Trolls, Orcs and Ogres mostly), the matron of the Worgs, Halycon, and a spider boss. The final boss in this instance is Overlord Wyrmthalak.
The second part is Upper Blackrock Spire, where you will face Rend Blackhand (the false Warchief) and the master of the forces under Nefarion, General Drakkisath.
A quest in the area, dropped by the Quartermaster just outside the instance, asks of you to kill General Drakkisath and obtain his mark. This will attune you to Blackwing Lair, so that you can enter there without first having to go through UBRS.
A Zerg Spire evolves into a Zerg Greater Spire.
spire means to influence
The Spire was created in 1964-12.
The population of Spire Corp is 200.
Spire Corp was created in 1998.
The Dark Spire happened in 2008.
André Spire died in 1966.
André Spire was born in 1868.
Spire - Denver - was created in 2009.
Spire Healthcare was created in 2007.
Spire of Dublin was created in 2003.
The population of Spire School is 10.