You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: IT TAKES A THIEF 
Clue: English novelist Ernest Hornung created this “gentleman cracksman”
raffles

Category: OXFORD UNIVERSITY 
Clue: He was expelled from Oxford but nevertheless learned 25 languages & translated "The Arabian Nights"
sir richard burton

Category: ARCHITECTURE 
Clue: This Washington, D.C. landmark was designed by Henry Bacon as a Greek temple with 36 Doric columns

the lincoln memorial