If you happen to know the President's House in Sri Lanka or the Central Bank, right next to these buildings you will notice a clock tower that has an old colonial look. That's the landmark we are talking about! It's the Colombo Fort Clock Tower which was once a lighthouse too. Although this was the tallest structure at the time it was built, later many other taller buildings came up and as the view was blocked, the lighthouse lost its significance. Point Zero Kilometre in Sri Lanka is here and this is, of course, the ideal place to start your Colombo City tour from hotels the likes of Residence by Uga Escapes.