A man takes pictures of St. Isaac's Cathedral during the Light Festival in St. Petersburg, Russia, on Nov. 5, 2016. The Light Festival took place in St. Petersburg for the second time and is planned as an annual event at which lighting designers and specialists in audiovisual art reinvent the architectural scene of St. Petersburg by using 3D video mapping. (Xinhua/Oleg Brusnikin)
A slideshow is projected on Mariinsky Palace during the Light Festival in St. Petersburg, Russia, on Nov. 5, 2016. The Light Festival took place in St. Petersburg for the second time and is planned as an annual event at which lighting designers and specialists in audiovisual art reinvent the architectural scene of St. Petersburg by using 3D video mapping. (Xinhua/Oleg Brusnikin)
A slideshow is projected on St. Isaac's Cathedral during the Light Festival in St. Petersburg, Russia, on Nov. 5, 2016. The Light Festival took place in St. Petersburg for the second time and is planned as an annual event at which lighting designers and specialists in audiovisual art reinvent the architectural scene of St. Petersburg by using 3D video mapping. (Xinhua/Oleg Brusnikin)
