If you live in the United States, or can justify the cost of flights to Orlando, Philadelphia, Chicago, Houston, or Anaheim this summer, then you might just get a chance to experience a physical representation of the world of Halo.
Halo: Outpost Discovery is a big interactive Halo exhibit where players can experience the world of Halo in VR, play some Halo-themed laser tag, and explore a big museum of Halo props. You'll also be able to play "the latest playable game releases", which maybe just sounds like some demo kiosks.
According to the website, the "heart" of the experience (so probably the biggest part of the experience) is a museum of artwork, prop weapons, uniforms, and replicas from the games. You'll also be able to: explore a Halo Array via some kind of multiple projector setup trying to give a sense of scale to the experience; play through a Covenant-themed escape room challenge; play some Halo-themed laser tag; do some kind of VR-based training exercise pretending you're a Spartan; do some Pelican flight training exercise; shoot at targets with Halo guns; and play with Halo-themed building blocks (scummy Mega Bloks, not Lego) if that's your jam.
Tickets for the event start at $60 (approximately £45) per person, per day. While the exact scope of the event is unknown, it does sound like a fairly fun day out if you're really really into Halo.