Tiger Sky Tower The Tiger Sky Tower is not just a tourist attraction in Singapore. It is also one of the country’s most important landmarks. They used to call it the Carlsberg Sky Tower and it is the tallest observation tower in the country. The tower is situated in Sentosa – the most famous tourist attraction in Singapore. It is 360 feet up in the air and has been giving the locals and tourists of Singapore an awe-inspiring view for the last 12 years.