With names of places and institutions, if they consist of a proper name and another nounA part of speech that names a person, place or thing. E.g.: The koala is a marsupial. ("koala", "marsupial"), we normally do not use an articleAny of the words "a", "an" and "the", used to limit or give definiteness to a noun. "A" and "an" are indefinite articles, while "the" is a definite article. E.g.: A man was standing on the platform. ("a", "the").

Juhász Gyula Teacher Training College
Trafalgar Square
Victoria Station
George Washington Bridge
JFK Airport

If a place name consists of an adjectiveA part of speech that modifies, qualifies or restricts a noun or a pronoun. E.g.: The apples are ripe. ("ripe") followed by a nounA part of speech that names a person, place or thing. E.g.: The koala is a marsupial. ("koala", "marsupial"), we use the definiteRelating to a specific or determined person, thing, idea or time. E.g.: I know the guy you are talking about. ("the guy you are talking about") articleAny of the words "a", "an" and "the", used to limit or give definiteness to a noun. "A" and "an" are indefinite articles, while "the" is a definite article. E.g.: A man was standing on the platform. ("a", "the").

the National Gallery
the British Isles
the British Council
the Royal Court

If the name of a place or an institution contains the possessive of-structureThe way in which the parts of a sentence, clause or expression are arranged. E.g.: make somebody + infinitive in "The teacher made me rewrite the composition.", we also use the definite article.