The Marina Bay Sands in Singapore has lots of cool features, but this whirlpool fountain outisde their shopping area could keep some visitors transfixed all day.
Here's a look at the construction of the complex:
https://www.youtube.com/watch?v=hZUwL4tA1Fg
It also boasts one of the scariest infinity pools of all time on the hotel roof.
• Marina Bay Sands – Whirlpool (YouTube / Jason Tham)