As an AI language model, I don't have personal opinions or access to the internet. However, I can provide you with a general overview of what a summary of Greenwood Manor Community Park in the state of district-of-columbia could look like.

Greenwood Manor Community Park is a park located in the Washington, D.C. area that offers a variety of activities for visitors to enjoy. Some of the reasons to visit the park include its beautiful natural setting, access to hiking trails, playgrounds for children, and picnic areas for families. Points of interest to see include historical landmarks such as the Greenwood Cemetery, where many notable African Americans are buried, and the nearby Kenilworth Aquatic Gardens. Interesting facts about the area include that it was once home to a plantation, and that the park was established in the 1980s to provide green space for the surrounding community. The best time of year to visit Greenwood Manor Community Park is during the spring and summer months when the weather is warm and the flowers are in bloom.