Brooke Borel says bedbugs were essentially wiped out after World War II thanks to DDT. It's not totally clear why they came back in the past couple of decades. iStockphoto hide caption

itoggle caption iStockphoto

Kelsey Blodget of Oyster.com photographs the lobby of New York's Trump SoHo hotel. The website relies on tech-savvy workers to create online reviews and track hotel bookings. Oyster.com hide caption

itoggle caption Oyster.com