I live in the US, and have tasted wines from the Muscat grape(under various names) from many countries.
At one time a huge amount of sweet, fortified Muscatel was made in California. It was very cheap and gave the Muscat grape a bad name. However those who drank this many years ago, along with cheap California "Sherry", "Port", "Angelico" and such, mostly switched to Thunderbird and such when these flavored wine drinks became available.
I have Fonseca's Moscatel de Setubal 25 year old, the 1934 vintage, and their Torna Viagem that was traveled around the world in ships. These are all high class wines of their types. Their younger wie can often be found in large wine shops in the US.
There is a Moscatel Vintage Madeira, but it is not made so much anymore as in the 1800s. I have two bottles of de Oliveira Moscatel Vintage Madeira 1900.
Also a Muscat vintage Malaga was made in Spain quite a bit in the 1800s. I have one bottle of Gran Muscat Vintage Malaga from the early 1800s. Malaga does not seem to be very popular in many places anymore, and the quality of much of it probably is not very high anymore.
Perhaps the most famous Muscat of all is the legendary Constantia from South Africa. It was once sought by kings and regarded as one of the best wines of the world. Even in the middle to late 1800s production had nearly ceased. I have a single bottle of either the 1791 or 1809 vintage. Those who have tasted these old wines often report that they still drink quite well, despite their age. An attempt is being made to revive Constantia, but it is much too early to say if the new wines being made will compare well with the old ones. The old wines used a mixture of several Muscats to get the taste desired. Also I have read that the grape bunches were "twisted" so that they nearly cut off the sap flow as the grapes became very ripe. If done properly, this greaty increased the sugar content of the grapes. It probably would be very difficult to develop this skill today, and no doubt quite expensive.
Several decent Muscats are now being made in California now. One example is Andrew Quady's Elysium Black Muscat.
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