Part of the original design for the federal city, this massive open space park stretches from the US Capitol to the Lincoln Memorial and around the Tidal Basin to the Jefferson Memorial. It was originally intended to be a grand avenue, and over time the Mall as we know it today cropped up. It has been the location of many historic, world-changing events throughout history including the 1963 March on Washington, the Million Man March and several presidential inaugurations. Today, the National Mall can serve as a place to remember American heroes, to celebrate freedom and to be a forum to exercise freedom in the form of protests and rallies. It is also where you will find the museums of the Smithsonian, the Vietnam Memorial, the Reflecting Pool and the famous Washington Monument. Certainly any visit to Washington DC should start at the National Mall.

This 52-acre park is located north of the Reflecting Pool amid the capital's many famous monuments and memorials. A beautiful place for a stroll, the paths wind through the trees taking you to the Vietnam Veterans Memorial, a lake and a memorial to the signers of the Declaration of Independence. Steeped in history, this is a must-see on any DC tour.

The gorgeous U.S. Botanic Garden conservatory presents botanical variety, from the desert to the tropics, along a series of calm and gently meandering paths. A particular waterfall and garden display the flora of the dinosaur age. Seasonal displays include Christmas greens and poinsettias in December and January, chrysanthemums in autumn and blooming flowers at Easter. A part of the United States Botanic Garden (USBG), the National Garden, was opened in October 2006 and includes the carefully-designed Butterfly Garden.

Early morning is the time to catch the blooming water-bound plants of this park. Run by the National Park Service, the 12-acre marshland park is often overlooked by visitors who head for better-known Washington sites. As a result, the park is an uncrowded getaway. Nature-lovers and children especially will enjoy more than 100,000 flowering plants and fauna sightings.

Spread over 530 acres (214 hectares) Cabin John Regional Park park is among the largest community parks in the Bethesda region. The Cabin John Regional Park has something for everyone, featuring picnic spots, playgrounds, athletic fields, tennis courts, a nature center, a dog park, skating rink, trails, a campground and a miniature train. The adventure playground and the totem pole are park's special attractions which are immensely popular among the little ones.

Washington Harbour's scenic setting combines the social pleasures and style of Georgetown with the natural beauty of the Potomac riverfront. The wide promenade is enjoyed by office workers, shoppers, strollers and diners at several restaurants offering outdoor seating. This is a perfect place to stroll at midday, before a sunset dinner, or after dark when the terraces are lit up.