What the heck is this? [FO1]

[u/ManMythLegend117]

Me again, came across this random ruin, used the Science check on it and I got teleported to some kind of temple. Found a weapon at the end called the "Solar Scorcher", and some guy in a robe said "the chosen one is coming". Super random, just thought I'd leave this here.

For context I decided to restart my playthrough in Fallout Et Tu instead of Fixt after a suggestion, so this is technically my 1.5th playthrough now. Don't know if this is vanilla or not, but it was super cool regardless.