Singapore building scape

Our last day in Singapore - and a long one as our flight does not leave until 11:30 in the evening. We caught the SMRT down to Marina Bay South and then a ferry out to St Johns Island and then on to Kusa. Both Islands are interesting, St Johns was once the worlds largest quarantine station in the 1930s for Cholera stricken immigrants and then, later on, was used as a holding place for political dissidents - also for drug dependents in rehab.
Nowadays it is a holiday island, very low key and serene really.
Kusa is a tiny island and has several temples both Malay and Chinese. It is also a haven for tortoise.