House of Commons Strangers' Gallery

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.

One of the oldest churches in Battersea, this church is where Christians have worshiped at the same site since 800 AD. It is protected as a Grade I listed building with its combination of heritage and architectural merit.

Church in Piccadilly designed by Sir Christopher Wren in 1684. It has a magnificent organ case and baptismal font by Grinling Gibbons.

The Guildhall Art Gallery houses the City Corporation's art collection, and also runs special exhibitions throughout the year. During construction of the modern gallery, workers discovered the ruins of London's Roman amphitheatre. The gallery was redesigned, and now the Amphitheatre is open to the public within the Guildhall Art Gallery itself and also free of charge.

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

The Royal Academy no longer has a permanent exhibition space, instead hosting art exhibitions. Notable exhibitions have included the paintings of Monet, contemporary art associated with the theme of apocalypse, and Aztec art. Each Summer, the Royal Academy plays host to a Summer Exhibition, displaying 1,200 new works by established and new artists selected by the academy, most of which are available for visitors to buy. Each member has to donate a work of art, so over the years, the academy has built a sizable collection. Exhibitions are invariably excellent, and it is worth paying for audio guides, if they are not included. Visitors should book tickets in advance, as exhibitions are often very popular – particularly shortly after opening.

Not as popular with tourists as St Paul's north of the river, Southwark Cathedral has been the site of worship since the year 852. Literally in the shadow of London Bridge, the Cathedral is a shelter from the noise of the city. Next to the Cathedral is the Borough Market open Th-Sa with a wide range of speciality food to buy, a good area for lunch.

Su Catholic Church of England with bells and smells (incense). There is an impressive model of the old London Bridge.

The oldest church in the City, founded by Saxon abbots in 675 AD.

The great domed cathedral of St Paul's, designed by Sir Christopher Wren to replace the Gothic medieval cathedral destroyed in 1666 in the Great Fire of London, was built between 1675–1710. Of the most famous London sights, St Paul's is the one most conveniently located for the Barbican. It's a significant building in British history, having been the site of the funerals of several British military leaders (Nelson, Wellington, Churchill), and significantly held peace services marking the end of the two world wars. The cathedral is also famous for its Whispering Wall, as well as its stunning view over the city. The crypt is also open to the public, holding the tombs of Nelson, Wellington and Christopher Wren. It is possible to sidestep the admission charge by entering for one of the midday services, even if you don't take part, or for the daily choral evensong in the late afternoon. However, you'd still need a ticket to get to the top. Photography is not allowed.

Completed in 1633 to a design by Inigo Jones.

The Duke and Duchess of Lauderdale's elegant 17th-century manor house, a mile or so upriver from Richmond riverside.

The complex incorporates the Old Broad House built in 1930s. The façades of which feature the famous sculpture of Prospero and Ariel and the Ariel friezes by Eric Gill and Gilbert Bayes. BBC's The One Show is transmitted from the studio at the ground floor every weeknight starting from 7PM. The studio is quite visible from the plaza outside and some parts of the show are performed from outside of the studio – in the plaza.

Beautiful Italianate church created during the Catholic revival of the 19th century.

The second biggest greenhouse in London, containing over 2,000 species of tropical plants as well as birds and fish.

Dedicated to scientific exhibitions and collections bar those related to the life sciences. A number of famous historical machines and inventions are housed here, from steam locomotives to the Apollo 10 command module. The space exhibits are especially popular. Exhibitions tend to concentrate on explaining scientific principles with working models and there is a strong emphasis on education and attracting children. The Science Museum opened a "Children's Gallery" in the 1930s and it continues to lead the way in this area; now, there are three separate galleries aimed at all ages of younger visitor, from 5 to 16. The museum also runs "Science Nights" whereby children spend an evening learning principles and participating in experiments before spending the night sleeping in the museum with the exhibits. Also houses a vast library of scientific and medical books and journals.

See also: Bank of England Museum.

Historic home to English kings such as Henry VIII, now open to the public. There are many attractions which can occupy a whole day visit, including 60 acres of gardens with the famous maze, the Tudor kitchens, the Chapel Royal, the Great Hall, Mantegna's Triumphs of Caesar paintings, and various exhibitions about Henry VIII.