The London Eye, without any doubt, is one of the best vantage points to observe and be fascinated by this beautiful city.  The people inside the capsule are looking at the Parliament Houses and the Big Ben. London - a view from The London Eye
London after hours.  Northumberland Avenue. London afterhours
The Queen's Walk is a promenade located on the South Bank of the River Thames, between Lambeth Bridge and Tower Bridge. The Queen's Walk, London
London's St Paul's Cathedral on a winter's night London's St Paul's Cathedral
The Millennium Bridge, officially known as the London Millennium Footbridge, is a steel suspension bridge for pedestrians crossing the River Thames in London, England The Millennium Bridge, London
"All Souls Church is an Anglican Evangelical church in central London, situated in Marylebone at the north end of Regent Street on Langham Place, just south of BBC Broadcasting House. As well as the core chur All Souls Church, London
Admiralty Arch is a landmark building in London which incorporates an archway providing road and pedestrian access between The Mall, which extends to the South-West, and Trafalgar Square to the North-East. Admiralty Arch is a Grade I listed building. Until recently, the building housed government offices, but in 2012 the government sold a 125-year lease over the building to a property developer for redevelopment into a luxury hotel.  It was designed by Sir Aston Webb, constructed by John Mowlem & Co and completed in 1912.[2] It adjoins the Old Admiralty Building, hence the name. The building was commissioned by King Edward VII in memory of his mother Queen Victoria, although he did not live to see its completion. A Latin inscription along the top reads:

 : ANNO : DECIMO : EDWARDI : SEPTIMI : REGIS :
 : VICTORIÆ : REGINÆ : CIVES : GRATISSIMI : MDCCCCX :
(In the tenth year of King Edward VII, to Queen Victoria, from most grateful citizens, 1910)

The sculptural figures of Navigation and Gunnery were designed by the English sculptor Thomas Brock.

In 2000, the Cabinet Office moved into offices in the building, while maintaining its headquarters on Whitehall. It was also home to the Prime Minister's Strategy Unit and the Social Exclusion Task Force. In 2011, as part of the government's austerity programme, the building became vacant and was put up for sale for a reported £75 million. In October 2012, the winning bidder was reported to be Spanish real estate developer Rafael Serrano, who planned to turn the property into a luxury hotel. The property was sold as a 125-year lease. (From Wikipedia) Admiralty Arch, London
This is probably as iconic as a photo of London can get, but I just couldn't resist... An iconic London composition
This is the main hall of London's Natural History Museum - a must see place especially given the fact that it is absolutely free to visit Inside The Natural History Museum, London
At night, London's Piccadily Circus becomes a stage for local talent... Piccadily Circus by night
Graffiti at London's South bank South bank graffiti
Fountain at London's Trafalgar Square on a cold January night Fountain at Trafalgar Square, London
La Dolce Vita sculpture by Lorenzo Quinn, London La Dolce Vita
A frozen slice of life from the Piccadilly Circus in London Piccadilly Circus, London
Regent Street is one of the major shopping streets in London's West End, well known to tourists Regent Street, London
Entrance into Earth Galleries Exhibition, London into the planet Earth
At the north-east corner of the Trafalgar Square is the St. Martin-in-the-Fields parish church. The church, with a large white steeple, was built in 1721 by James Gibbs and was used as a model for many churches, especially in the United States. It is the fourth church at this site, the first was built in the 13th century. St. Martin-in-the-Fields church
London's Barclays cycle hire near the Embankment tube station London cycle hire
The National Gallery is an art museum on Trafalgar Square, London. Founded in 1824, it houses a collection of over 2,300 paintings dating from the mid-13th century to 1900. The National Gallery, London
Dismounted sentrie of the  Queen's royal horse guards.  

It's a tough job to stay still the whole day in summer's heat or winter's cold, be a model for hundreds of tourists and not loose your calm or composure - meet Queen's Royal Horse Guard in London. Queen's Royal Horse Guard
Surrounding Nelson's Column are two great fountains collectively called The Trafalgar Square Fountain. The were added to the square in 1845 and the remodeled in 1939. The fountains contain bronzes of dolphins, mermen and mermaids. The Trafalgar Square Fountain
View of the main hall of London's Natural History Museum Inside The Natural History Museum