I love the concept behind BIG Design's Valentine's heart sculpture. From the description:
For four years, Times Square has hosted an annual heart sculpture to celebrate Valentine’s Day, selecting a special architect to design a romantic public art installation in Times Square for all to enjoy.
This year’s 2012 Times Square Valentine heart sculpture is “BIG ❤ NYC” by BIG Design, which utilizes the flow of people, air and movement to bring its heart to life. More people = more love. A BIG red heart pulses with glowing light in a grove of glass rods. Bigger crowds make the heart burn brighter.
A single person can activate the beating heart, but joining hands with others will make the heart beat even faster to create a brightly burning heart.
The 10-foot tall glowing sculpture consists of 400 transparent, LED lit, acrylic tubes that form a cube around a suspended red heart. The transparent tubes refract the lights of Times Square, creating a cluster of condensed city lights around the heart.
(Photos by christiNYCa)