Last week, we shared the theme for Macro Monday’s latest group challenge –– glass. From this challenge, participants shared stunning explorations of crystal, jewels, and glass, using light, color, and different angles and edges to create captivating photographs.

To explore a larger selection of photos that were submitted for this theme, visit this gallery.

The Macro Mondays group produces weekly macro photography challenges. The theme for this week is “Sound.” To participate, the group asks that you take “a photograph of something designed and built by humans for the specific purpose of making sound (buzzers, bells, instruments, sirens, whistles,…), recording/processing/preserving sound (microphones, mixing boards, records, cds, cassettes, …) or replaying sound (speakers, earphones, radios,…).” Read more details about the theme and the group’s rules and then add your relevant photo to the Macro Mondays group photo pool this Monday, August 31st.