Before image: Golden Gate bridge; After image: People stop at Fort Point to take pictures of the Golden Gate Bridge covered in smoke from wildfires on Sept. 9, 2020; Vanessa McCauley / Getty Images, Eric Risberg / AP

Before image: Dolores Park in San Francisco; After image: Downtown San Francisco under an orange sky on Sept. 9, 2020; Ahmet Karaman / Anadolu Agency via Getty Images, Stephen Lam / Reuters

Before image: The Bay Bridge from San Francisco's Embarcadero; After image: The Bay Bridge on Sept. 9, 2020; Chris LaBasco / Getty Images, Philip Pacheco / Getty Images