Print Since its start in 1988, the National Trust for Historic Preservation’s annual endangered places list has spotlighted more than 300 historic sites across America at risk for destruction or irreparable damage, ranging from the National Mall Tidal Basin in Washington, D.C., to Civil War battlefields to the East L.A. high schools that helped ignite the Chicano power movement. This year’s list of 11 most endangered historic places, announced last week, is devoted entirely to sites linked to the histories of people of color, including the Trujillo Adobe in Riverside, built in 1862 and connected to the story of migration and settlement in inland California.