More Ley Lines cross beneath Manhattan than anywhere else in the World. The Lenape Indians were aware of this and harnessed their power. The Dutch used this power to purchase the Island for trinkets. The British used it to gain the Island and then again to confound George Washington during the American Revolution. It was used by the Spin Doctors of Tammany Hall and Theodore Roosevelt to rise to Power, and has unwittingly been tapped repeatedly by modern luminaries (What else could be responsible for the fame of a Paris Hilton, Kim Kardashian, or a ‘Snooki’?).
And this power attracts those who seek to harness it for their own purposes. This power has lured the Olympians and their children to New York. This power has brought more Immortals than have been gathered anywhere else to dwell amongst its populace. This power is believed to be the cause of the ‘creatures of shadow’ which wander amonsgst mortals hidden in a natural glamour. And it is this power that is the reason for NYC’s prominence amongst the Supernatural world, with more beings of the non-mortal bend dwelling within its confines than anywhere else in the world.