LOS ANGELES — Just before 10 a.m. on a sunny Sunday in November, a crowd gathered in front of a white modernist building here on Hollywood Boulevard. An inscription on its side, “H/N,” short for “Here and Now,” stood out from a block away.

Twenty- and 30-somethings spilled onto the steps and the lawn, dressed in crop tops, moto jackets, and jeans torn deliberately at the knees.

While Christianity is on a decline in the United States, at Mosaic and other churches like it in the Los Angeles area, the religion is thriving.

Read the article “Los Angeles Churches Make Worship … Hip?” on nytimes.com.