I forgot to include Humayun's Tomb. We actually went there after the Baha'i Temple and before the Birla Mandir. Humayun was the second Moghul emporer. This tomb is a prototype of Mughla architecture, which I saw over and over again and found beautiful each time. These dudes loved symmetry, so everything is designed to be balanced.
While there, I had to use a public bathroom and discovered that when squatting over a shallow porcelain hole in the ground, it is critical to squat as deeply as possible or else pee will splash up on your shoes. Pee on your shoes will wind up being not nearly as gross as it initially seems by the end of the week.