Clink Prison Museum

Garden founded by apothecaries in the 17th century to the medicinal properties of plants. It was only opened to the public in the 1980s, when it became a charity. The heat-sink caused by its thick walls, combined with the general waste heat of London itself, keeps the garden much warmer than it would otherwise be at this latitude. Due to this, the garden contains the world's most northerly example of a grapefruit outside of a greenhouse, and the largest fruiting olive tree in the country. The collection contains thousands of different plant species.

A 900-year-old tree stump carved and painted to feature elves and small animals.

Fine stone bridge linking Twickenham/St Margarets with Richmond. It is the oldest surviving Thames bridge in London, dating from 1777.

This steel pedestrian bridge connecting Bankside with the City of London has all the lovely views of the Thames that you'd expect, but most of those who cross Millennium Bridge never notice its most distinctive feature. The bridge is dotted with hundreds of tiny paintings, so small that you'll probably miss them under your feet if you're not looking for them.

Houses the British national collection of western European art dating from the 13th to 19th centuries. A truly awe-inspiring collection, notable works include Hans Holbein's The Ambassadors, Van Gogh's Sunflowers and Constable's The Haywain. The vast majority of art is free of charge to visit. Temporary exhibitions are generally fairly costly, but invariably well researched and presented. The audioguides are very comprehensive, have comments on most of the paintings in the museum, and are free though this fact is not advertised. A donation is suggested. In addition to courses, workshops, lectures and other events, the National Gallery has free talks and tours every day.

Designed by one of Britain's leading architects, Sir Norman Foster, this curved glass skyscraper was the 2004 recipient of the Stirling Architectural Prize for Best Building. It was built on the site of the Baltic Exchange building, destroyed in 1992 by an IRA bomb which killed three. On the Bury Street side of the Gherkin by some black stone benches is the Tomb of the Unknown Girl for a teenaged Londoner who died 1,600 years ago (see infobox above), marked with a marble laurel wreath and inscription. Searcy's Restaurant (from £50) at the top takes bookings up to five weeks in advance and you have to go through security before going up.

The eastern half of the twin parks. Of the two, Hyde Park is open for longer and has more open, unwooded land; it is often host to concerts, fun fairs and events. More of an artificial stream than a fountain, flowing in an oval through an open grassy area which, in normal summers, is a popular paddling spot for children and grown-ups alike.

The second largest of the London Royal Parks, covering an area of 450 hectares (1,099 acres). Lying north of Hampton Court Palace, the history of the park is inextricably linked to the palace, yet it has always had its own distinct rural character. There are herds of both Red Deer and Fallow Deer, they are wild but usually safe, just don't go too close or get between a hind and its calf. The D-Day linked bits are easiest found from the Teddington side. Go through SHAEF gate and there is an information board. You should be able to spot a flagpole a hundred yards into the park, this marks the spot where General Eisenhower had his office, if you have time, or children who are up for a challenge, there are bronze markers with combined British and Canadian and US flags at the corners where the main buildings of Camp Griffiss were. The partially restored early 18th-century baroque water gardens are a short walk from the Hampton Hill gate. The park is subdivided by Chestnut Avenue, Christopher Wren's grand approach to Hampton Court Palace which runs from Teddington Gate to Hampton Court Gate and with the gilded Diana fountain closer to the Palace end (you may have seen it as location for the finish line of some of the cycling events at the 2012 Olympics).

Built of Portland stone and dedicated to the aircrews of Allied nations under Bomber Command during World War II.

One of the most expensive residential streets on the planet! Most of the buildings here are embassies or ambassadorial residences but the rest of the mansions belong to some of the richest people in the country (or elsewhere). For added historical value, during World War II, the current Norwegian embassy was where King Haakon VII led the Norwegian government-in-exile (commemorated by a blue plaque) and MI19's "London Cage" prisoner-of-war facility was located here. There is no public right of way but the Crown Estate allow pedestrians and cyclists to use the street; photography is not permitted.

The Serpentine is a long, thin artificial lake within Hyde Park which contains a range of waterfowl and fish. It was first made by damming the River Westbourne but it is now fed by three boreholes. The western end of the lake is actually in Kensington Gardens, in which it is called The Long Water. Swimming and boating are popular activities on the Serpentine; see 'Do' section.

The London Mithraeum is a 3rd century Roman mithraeum that was discovered in Walbrook during construction work in 1954. The entire site was relocated several times before being returned to its original site as part of the new Bloomberg building. This temple of the mystery god Mithras became perhaps the most famous 20th-century Roman discovery in London. In addition to the temple structure, there is a display of Roman artefacts found on the site and a contemporary art exhibit responding to the site. Visitor numbers are limited and timed slots are often fully booked up several weeks into the future so plan well ahead.

Now permanently closed, will be replaced by new museum at the former Smithfield market site in 2026. The Museum of London Docklands remains open.

The oldest of the Royal Parks of London.