co-orindate: 8.4828° N, 76.9436° E It is located just ~8 degrees north of Equator, so during equinox, the sun sets almost vertically. the temple is ~35 m wide, 35 m tall. the five stories with doors are roughly 21 m apart vertically. Half hour before equinox sunset, azimuth is 269 degrees Equinox sunset, azimuth is 270 degrees So if the window is enough wide, then sunset will appear in all 5 windows say 200 m away from the temple, the sun travels in horizontal distance = tan ( 1) * 200 = 3.5 m. But there are only 5 windows in this 7 story building, so the sun travels through these windows 3.5 x 5 / 7 = 2 m horizontally from photo, widest window(at first floor) is only around 1.4 m wide, so the windows are very likely not vertically aligned, but tilted by say 0.5 degrees along north-south direction, or 0.6 m horizontally. Watch the youtube video above 0:48 - 0:55 please note the windows are not the same sizes, most narrow at top floor, and wider when ...