Photo by Sophie et Fred on Flickr. Source
This photo has been in my favorites on flickr for awhile now and I took a moment to look it up. I love the lights and the reflection and the clouds the gloom of the day... I love this photo.
But I didn't know what it was other than the title they gave it: "La Defense" and it had a tag of "Paris".
A little searching and I found what I'm looking at.
Paris’ La Defense District: The Home to the Largest Open-Air Contemporary Art Space in France
I first found the reference to Signals in this article: http://www.artweekenders.com/europe/france/paris/paris-la-defense/
Which led me to specifics on this artwork:
Signals by Panayotis Vassilakis Takis - 1991
To reply to a wish expressed by the architect of the Grande Arche, OJ von Spreckelsen Takis designed 17 light signals.
Placed at the back of the Grande Arche, they mark the end of the axis that runs through La Defense, responding to those of Bassin Takis to offer a changing spectacle, both day and night. The height of these light elements, installed in 1991, varies from 6.50 meters to 11.50 meters.
Greek sculptor, Panayotis Vassilakis Takis says, was born in 1925 in Athens. He lives and works in Paris. Largely self-taught, he tries to classical portrait in the late 40s before moving to stylized figures and refined human forms.
Inspired by airports, rail yards and magnetic fields, fascinated by light and movement It borrows its basic materials to manufactured objects to create compositions he calls "Table vibratif", "Télésculpture", "Télélumière", "light sculptures".
His first "Signals" piano strings vibrating due to wind, were created in 1955.