There's a copy of the Empire State Building in Vegas and another Statue of Liberty in Paris, but 770 Eastern Parkway, the home of the Chabad Lubavitch World Headquarters in Brooklyn, tops them all. As captured and depicted in this work by artists Andrea Robbins and Max Becher, the 19th century gothic-brick house has been remade in 12 cities on five continents, with plans underway for the 13th and 14th. I received a comment about this back in November, but I hadn't passed the site with a camera until early this morning.
The house was purchased by the Chabad Lubavitch movement in 1940 for the sixth Rebbe, Yoseph Yitzchak Schneerson, who had come to Brooklyn fleeing Nazisim (the Wikipedia page claims that the previous tenants were shut down for performing illegal abortions, but I couldn't verify this). It became the a center of Lubavitcher life in the 1950s under the seventh Rebbe, Menachem Mendel Schneerson, and began to be replicated worldwide as part of the Chabad House movement. For an interesting look at the religious history of Chabad Lubavitch Judaism and its place in Jewish Orthodoxy, click here.
770 even has its own blog (what could be a better indicator of status than that!).