Built for the 1958 World's Fair (aka Expo Designed by André Waterkeyn and architects André and Jean Polak. Refurbished 2008 as tourist attraction, with observation platform, restaurant, educational exhibits.
(Cherry blossoms, Fuji Volcano, Japan) (story inspiration) You said something about volcanos in the fire area, right? So maybe something like this would work. (Possibly minus the cherry blossom tree.