The Ghostbusters Headquarters Firehouse is similar to sets that have been submitted to LEGO Ideas, including one by the original Ecto 1 designer Brent Waller. I can't understate how massive this set is! It actually took me something like 2 months to finish building this - mainly because of the need to take photos, and inability to dedicate the many, many hours needed to finish it!
When i first heard about this model i knew i had to get it, becouse, well, it happens that i live in Venice and it's not an everyday thing that Lego releases an architecture set of your city! Seeing the Saint Mark lion printed on a brick gave me a really funny feeling!
Doctor Who is the latest from the LEGO Ideas line of sets. The original submission was in Feb 2014 and included some variations and alternate possible Doctors. The final design chose to include two Doctors (but only one companion), and was pretty faithful to the original idea. It includes the detachable Tardis and interior control console.
LEGO Dimensions is a console game with physical LEGO parts. There was a big marketing campaign around it, given it's tie-ins with lots of other franchises including Back To The Future, Portal, The Simpsons, Lord of The Rings, Jurassic World and many more. 71173 is the XBox 360 Starter Pack, there is an equivalent starter pack for a number of other games consoles.