I have two British gentlemen who find themselves with time to kill in Colombo in the early-to-mid 1930s. One of them has been to Sri Lanka* before, the other hasn't. Gentleman A decides to show Gentleman B "the sights". What are "the sights"?
Research: I looked at tourist sites so I know what the must-sees are today. But I don't want my characters to stumble into something that wasn't open to the public back then or go somewhere that wasn't considered interesting or worth seeing then.