This tour of Paris from Ubisoft allows you to view a 360 degree representation of the city today in the build up to the Assassin's Creed: Unity launch.
Project Widow let's you explore Notre Dame, Place de la Concorde, and The Bastille, with AC: Unity artwork and videos scattered about to discover. It's kind of like the Planet View that was launched for Destiny a few weeks ago.
The game is centred around the French Revolution, and the virtual tour gives information on how it's been used in the game with narration from Andy Serkis (Gollum in LotR) himself.
Head on over to the website over here to take the tour yourself.