Wizard spires are locations that wizards and warlocks can teleport people or their groups to.  Currently there are four known wizards spires within EverQuest 2.

Antonica: scroll at -2080 13 -614

Commonlands: scroll at 6 -46 -412

Greater Faydark: Spire near Steamfont Mountains Entrance (Location comming)

Teren's Grasp: The whole city itself can be considered the wizard spire.  The scroll is near the four casters. (Location Comming)

Once you obtain the scroll you will be issued a quest to head back to a teleport trainer. The teleporter trainers are usually located in mage districts/areas of cities.  Qeynos: 715 33 146 up the blue portal in the mage tower.