Modern resorts are getting bigger and even more impressive. But did you ever think of how difficult it is to build one of them? CBS News Travel Editor Peter Greenberg goes behind the scenes and shows us the construction of one of the biggest resorts of all- time: the much-delayed Baha Mar, in the Bahamas. Plus, a lot of hotels will claim they are historic, simply because they're old. And then there's the case of the legendary Raffles Hotel in Singapore. Peter reveals its rich and colorful history. And, correspondent Tracy Gallagher takes us to Hilton Head Island in South Carolina, which is one of the most important beaches in the world for loggerhead turtle nesting.