Great ball of fire, 1996

Gas workers gather at the scene after a line was ruptured and fumes ignited on Walnut Street near 20th, on the edge of Rittenhouse Square in the Center City section of Philadelphia in 1996.

Below, a Philadelphia firefighter hoses down stained-glass windows on the side of the Church of the Holy Trinity, out of concern that heat from the flames could have melted the lead holding them together.