A Ducati MH900e, dating from about 2001, next to a custom designed stairway in the underground level of Jonathan and Wendy Segal's home in the La Jolla neighborhood of San Diego, March 13, 2014. Throughout the house, the walls are cast-in-place concrete with a wood-grain texture left by the plywood formwork and the ceilings and many of the floors are also concrete. (Trevor Tondro/The New York Times)