Here might be some insights about this style as manifested in Baltimore.
Examples
Listing
Map
[{"name":"Baltimore Basilica","title":"\u003Ca href=\"\/index.php\/Baltimore_Basilica\" title=\"Baltimore Basilica\"\u003EBaltimore Basilica\u003C\/a\u003E","lat":39.29443,"lon":-76.61617,"otherValues":{"architect":"\u003Ca href=\"\/index.php\/Benjamin_Henry_Latrobe\" title=\"Benjamin Henry Latrobe\"\u003EBenjamin Henry Latrobe\u003C\/a\u003E","completion date":1863},"icon":"\/images\/d\/d2\/Red-marker.png"},{"name":"First Unitarian Church","title":"\u003Ca href=\"\/index.php\/First_Unitarian_Church\" title=\"First Unitarian Church\"\u003EFirst Unitarian Church\u003C\/a\u003E","lat":39.29529,"lon":-76.6158,"otherValues":{"architect":"\u003Ca href=\"\/index.php\/Maximilian_Godefroy\" title=\"Maximilian Godefroy\"\u003EMaximilian Godefroy\u003C\/a\u003E","completion date":1817},"icon":"\/images\/d\/d2\/Red-marker.png"}]
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Church
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Government
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Dwelling
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Park
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Educational
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