Out of a little nut a majestic tree will grow. The oaks along Huntington Avenue beside Harvard Medical School are flush with acorns. They hang heavily on the ends of branches while leaves unfurl thier glossy, green leaves like stoutly inflexible pennants.
Longwood is not the most cheerful neighborhood in which to take a lunch hour stroll. The classrooms and labs have taken over the neighborhood and there aren't many shops and there isn't too much shade to paint a picturesque streetscape. Despite that, there are a few trees, like the 10-year-old oaks already mentioned, and there are benches where diners tuck into pizza slices and sandwiches. This is also ideal weather for girl- and boy-watching depending on your inclination.
I wouldn't recommend Longwood to tourists unless they are the type that groove over medical students, art students and people wearing hospital johnnies. Longwood is modernist ugly but it is lively. It doesn't thrum with an urban vibe, rather it hums with medical administrators ambling about the sidewalks killing time until the return thier cubicles. There are worse sights.