Trafalgar Square is the quintessential London tourist attraction, along with the Changing of the Guard and Big Ben. 

 At the center of the city, Trafalgar Square is bustling with action.  Tourists and locals alike can be found walking through the square, visiting the shops and museums, or just strolling and taking in the surroundings.
In the heart of London, Trafalgar Square can be found at the point where Whitehall meets the Strand, where the City of London and the City of Westminster come together.  The square, which commemorates the 1805 Battle of Trafalgar, is alive with modern day British culture, stunning architecture and art.
In the center of the square is Nelson’s Column, surrounded by fountains and four bronze lion sculptures.  At three of the four corners of the square are statues of George IV, Henry Havelock and Sir Charles James Napier.  Each holds a unique place in British history and you won’t want to miss taking pictures of yourself and your family in front of the statues.
At the north end of Trafalgar Square is the British National Gallery, one of London’s famed museums.  Relax on the lawn in front of the National Gallery astride statues of James II and George Washington or enter the gallery to see the collection of over 2,300 paintings.
On the east side of the square you will find the St Martin-in-the-Fields Church, named for patron Saint Martin of Tours.  The church is famous for excavations, which lead to the uncovering of a Roman era grave dating back to the year 410.  St Martin-in-the-Fields Church is one of the most famous non-catholic churches in the London area and is worth visiting if you are in Trafalgar Square.
If you are visiting London during the holiday season, then don’t miss out on the Christmas ceremony that takes place at Trafalgar square each year.  A huge Norway spruce tree is given to the people of London each year by Oslo and is erected in Trafalgar Square and decorated.  It is a sight to behold and a must-see for holiday travelers.
While in London you can easily access Trafalgar Square by the London Underground, a number of city buses or by taxi.  This attraction is the epitome of London and its culture and is not to be missed.