Wikipedia: Tower of London
- An illustrated history and description of this World Heritage Site from the collaborative encyclopedia. It is a complex of royal buildings centred on the fortress built by William the Conqueror in 1078.
- http://en.wikipedia.org/wiki/Tower_of_London

London Bridge
- An illustrated history from Southwark Council of the first bridge over the Thames at London.
- http://www.southwark.gov.uk/DiscoverSouthwark/HistoricSouthwark/LondonBridge.html

The Crystal Palace
- Computer models of this Victorian marvel designed by Joseph Paxton from the University of Virginia, with an illustrated account of its history and construction.
- http://www.iath.virginia.edu/london/model/

Nelson's Column Restoration 2006
- Describes the conservation and repair of the statue of Nelson and associated stonework by the firm, David Ball Restoration Ltd (DBR). Photographs with slideshow, the project, history, the team, links, and contacts.
- http://www.nelsons-column.co.uk/

Tower Bridge Experience
- History and visitor information for this Victorian bridge, designed by Sir Horace Jones.
- http://www.towerbridge.org.uk/

St Martin in the Fields Church
- Located in Trafalgar Square, designed by James Gibbs. Includes brief information about the history of the building.
- http://www.stmartin-in-the-fields.org/

Central London Churches
- Articles by Mark McManus on the architecture and history of the churches, illustrated with old prints.
- http://www.ourpasthistory.com/london/

Tower of London Virtual Tour
- Unofficial guide to the Norman royal castle by two American enthusiasts, with pages for children.
- http://www.toweroflondontour.com/

Palace of Westminster
- History and description of the layout. Also includes information for visitors.
- http://www.parliament.uk/parliament/guide/palace.htm

Eltham Palace
- English Heritage describes this combination of medieval royal palace and Art Deco home. Includes virtual tours, history, games, downloadable activity sheets, news and visitor information.
- http://www.elthampalace.org.uk/

Westminster Cathedral
- Includes a brief history and tour of the Byzantine-style building, designed by Victorian architect John Francis Bentley.
- http://www.westminstercathedral.org.uk/

St Paul's Cathedral
- Baroque church designed by Sir Christopher Wren in 1673. Includes visitors' information, details of services and events and information on the building including an illustrated chronology and 360-degree panoramas.
- http://www.stpauls.co.uk/

St Jude's, Hampstead Garden.
- Edwin Lutyens designed church: concerts, services, activities and photo galleries.
- http://www.stjudes.org.uk/

Somerset House Trust
- A major historical building now fully restored by the Trust. Includes Gilbert Collection, Hermitage Rooms, Royal Navy Rooms and Courtauld Gallery. Events, attractions, visitor information, commercial services, image library, other resources.
- http://www.somerset-house.org.uk/

Historic Royal Palaces
- Official visitor guide to the Tower of London, Hampton Court, Kensington Palace, the Banqueting House, Whitehall, Kew Palace and Queen Charlotte's Cottage. Includes information on the history, what to see and what's on at each location.
- http://www.hrp.org.uk/