I would prefer to see Trafalgar Sq. Then there's something interesting in all directions (Soho, Covent Garden, etc.).
"Trafalgar" is usually pronounced with the stress on "-fal-". The first "-a-" and the "-ar" are schwas; the "-al-" is pronounced with a short a, as in the "al" in words of Arabic origin.
(I feel I've made that more complicated than it needed to be!)