Culicover and Levine (2001) distinguish two kinds of locative
inversion in English based on their divergent behaviour in a
number of syntactic tests: heavy inversion and light inversion. I
bring a third kind of locative preposing — locative
topicalization — into the paradigm and observe that locative
topicalization patterns with heavy inversion. I give a movement
analysis of these three kinds of preposing that captures this
parallel by proposing that locative topicalization and heavy
inversion both involve an A’-movement ‘topicalization’ step.