The Menorah in the Holy chamber has a strange association with the approximate value of Pi. With the 7 lamps and 22 almond blossoms you get the ratio 22/7 = 3.1428. This approximate value of Pi is only good to two decimal places compared to the real value: 3.141592653589793238462643383279502884197169399375105820974944592307816406286
What makes it curious is the fact the artwork of the Menorah usually shows the branches of the lamp in a half circle formation which is what Pi is all about, the ratio of a circle's circumference to its diameter.
At my work today they gave out small Hostess fruit pies to everyone in honor of Pi Day.