Covering 350 acres, Hyde Park is London's largest open space and has been a destination for sightseers since 1635. One of the park's highlights is the Serpentine, an 18th-century man-made lake popular for boating and swimming.
Hyde Park is also where you'll find Speakers' Corner, a traditional forum for free speech (and heckling). Another Hyde Park landmark is Apsley House, former home of the first Duke of Wellington and purchased after his famous victory at Waterloo.
Now a museum, it houses Wellington's magnificent collections of paintings, including Velázquez's The Waterseller of Seville, along with gifts presented by grateful European kings and emperors.