Unsung benefits of a trip to the park (and why DC ranks No. 1 in the nation)

For the fourth straight year, D.C.’s park access tops the Trust for Public Land’s Annual ParkScore Index — and the study finds the benefits go beyond having great playgrounds, pickleball courts, dog parks and amphitheaters. Boulder Bridge landmark found in Rock Creek Park in Washington, D.C.(Getty Images/iStockphoto/RHW Photography) Boulder Bridge landmark found in Rock Creek…