A variety of century-old homes that mostly reflect European influences. Think brick townhouses, Tudor-style cottages and stately Colonial-style mansions. In April, nearly 80,000 tulips bloom at the six-acre Sherwood Gardens. “When the tulips come up, there are hundreds of people in Sherwood Gardens, many from outside the neighborhood,” Riley says. Guilford has planned a calendar of events in celebration of the neighborhood’s centennial that runs through this spring.