Downloadable computer software for virtual and augmented reality visualization; downloadable interactive and immersive computer software for use in education, entertainment, tourism and sightseeing featuring virtual and augmented reality; downloadable interactive and immersive virtual tours and videos; downloadable virtual and augmented reality software for interactive and immersive learning and virtual tours; downloadable computer software for use on virtual reality tablets, headsets, computers, goggles and mobile platforms for educational and entertainment purposes in the fields of history, archeology, art and culture; downloadable computer software for use in providing, accessing, synchronously and asynchronously communicating, downloading, and streaming virtual and augmented reality content, audiovisual content, text, data, images, digital media, multimedia via a global computer network and wireless devices in the fields of sightseeing tours, tourism, education, museums, art galleries, art exhibitions, art collections, artwork, architecture and historical and cultural heritage sites; downloadable software for virtual tours; downloadable virtual and augmented reality software for sightseeing tours; downloadable virtual and augmented reality software for teaching in the nature of virtual tours; downloadable virtual and augmented reality software for use in virtual reality tablets, headsets, computers, goggles and mobile devices for integrating electronic data with real world environments for the purpose of virtual tours of museums, art galleries, art exhibitions, artwork, architecture, historical and cultural heritage sites and art collections for educational and entertainment purposes; virtual and augmented reality software for immersive and interactive educational experiences in the fields of history, archeology, architecture, art and culture; computer software for viewing and interacting with 2D and 3D virtual environments in the nature of virtual tours; downloadable data files featuring virtual and augmented reality content, audiovisual content, text, data, images, digital media, multimedia in the fields of sightseeing tours, tourism, education, museums, art galleries, art exhibitions, art collections, artwork, architecture and historical and cultural heritage sites; GPS transmitters and receivers to facilitate augmented reality and virtual reality experiences; virtual reality and augmented reality apparatus comprised of virtual reality headsets, tablets, computers, goggles, mobile devices, electronic controls, and head-mounted video displays; computer hardware for use in virtual and augmented reality experiences; audio and audio-visual equipment to facilitate augmented reality and virtual reality experiences, namely, headphones, audio speakers, and microphones; apparatus to facilitate sensory enhancement in augmented reality and virtual reality experiences, namely, virtual reality glasses, goggles, and headsets; downloadable and electronic educational and training materials in the nature of multimedia files, text files, and written documents related to virtual reality-based educational and entertainment experiences