The museum housed in this fortified castle of the colonial period is dedicated to the study of navigation, underwater archaeology and maritime history.

UNESCO: MEDIA SERVICES

You won't find it in any site navigation, searching yields almost nothing, and the team at GenerationMP3 admit that they stumbled on it by chance (you can still find it via cached Google pages, which indicate that it was on the U.K. site's navigation at some point in recent history).

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This milestone in aeronautical history marks the first use of the sextant in air navigation.

UNESCO: MEDIA SERVICES

But they are not alone, the American Museum of Natural History in New York City, has also installed an indoor navigation system to strengthen the visitor experience and has six Explorer apps visitors can use in their visit.

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You might assume that an indoor navigation app for, say, the American Museum of Natural History has the same primary concern: getting you from the main entrance to the T-Rex.

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