Sepulcher of Order
Sepulcher of Order is a Tier 4 zone in the Veil of Alaris expansion.
You may also go to the Sepulcher of Order by dropping down the crack in the center of the zone in Shard's Landing. It is recommended that you have levitation on, as you arrive above the ground. It also may not be a safe spot, so being able to evacuate to the zone in while floating down is a good idea.