The Spire of Dublin aka the Monument of Lights is a 120 meter (393 ft.) needle-like structure located at the former site of Nelson's Pillar in Dublin, a monument that was destroyed by an IRA bomb in 1966.

Slate has a mini slideshow about the spire, including an old photograph of Nelson's Pillar and pictures of the spire being constructed and erected. Here's the link at Slate.com. [The picture on this post came from Flickr user informatique and is shared under Creative Commons.]