Paris museum takes visitors back 150 years to impressionism's birth

The Orsay Museum in Paris is marking 150 years of impressionism from Tuesday with an unprecedented reassembling of the masterpieces that launched the movement, and a virtual reality experience that takes visitors back in time. Using VR technology, visitors to "Paris 1874: Inventing Impressionism" can take a plunge into the streets, salons and beauty spots that marked a revolution in art.