The assassination of the Rev. Martin Luther King in April of 1968 sparked days of rioting in Baltimore. An economic meltdown followed. Forty years later, some neighborhoods have yet to recover.
To educate people about the scope of the destruction and its long aftermath, the University of Baltimore offers a driving tour through some of the city's worst-hit areas.
One tour guide, professor Lenneal Henderson, says the entire city was affected.
"Individual homes were damaged, schools were damaged, faith institutions were damaged," he says. "It wasn't just the commercial infrastructure that was hit."
Henderson reflects on the riots and the city that emerged.