'The Oculus' is the newly opened main hall of the World Trade Center transit hub.

An oculus is defined as a circular or oval window; or a circular opening at the top of a dome

New York's Oculus was designed by Santiago Calatrava, and has been termed by The New York Times as 'an unearthly winged structure taking form at the new World Trade Center'.

Also from The Times: 'It is a majestic and luminous space — framed by soaring, softly curving white ribs and the ribbons of light between them — that looks like nothing so much as the nave of a cathedral by Gaudí.

Or like a turkey skeleton after it’s been stripped clean at Thanksgiving'.

The debate over the $3.9 billion World Trade Center Transportation Hub, of which the Oculus is the aesthetic and retail centerpiece, is only beginning. Love it or hate it, however, there is no denying its magnitude'."