A new startup based in Italy, called Invisible Cities, launched a new tourist experience based on a virtual-reality bus tour.
The bus uses several innovative technologies, including the adoption of 8 transparent OLED TVs (55" LG panels) that overlays information and videos on the view from the bus. Using sensors and software, the bus can maintain and overlay the image over the real world views outside. There's even a network of vents that deliver smells that suit the view - all intended to "transport you 2000 years into the past".
The Invisible Cities VR Bus tours are now operating in Rome.