Here might be some insights about this style as manifested in Baltimore.
Examples
Map
[{"name":"1122 North Calvert Street","title":"\u003Ca href=\"\/index.php\/1122_North_Calvert_Street\" title=\"1122 North Calvert Street\"\u003E1122 North Calvert Street\u003C\/a\u003E","lat":39.3032,"lon":-76.61346,"otherValues":{"architect":"\u003Ca href=\"\/index.php\/Wilson_%26_Wilson\" title=\"Wilson & Wilson\"\u003EWilson & Wilson\u003C\/a\u003E","completion date":1890},"icon":"\/images\/f\/f3\/Yellow-marker.png"},{"name":"Brown's Arcade","title":"\u003Ca href=\"\/index.php\/Brown%27s_Arcade\" title=\"Brown's Arcade\"\u003EBrown's Arcade\u003C\/a\u003E","lat":39.2932,"lon":-76.61562,"otherValues":{"architect":"\u003Ca href=\"\/index.php\/Henry_F._Brauns\" title=\"Henry F. Brauns\"\u003EHenry F. Brauns\u003C\/a\u003E","completion date":1904},"icon":"\/images\/c\/c4\/Purple-marker.png"},{"name":"Louisa May Alcott School","title":"\u003Ca href=\"\/index.php\/Louisa_May_Alcott_School\" title=\"Louisa May Alcott School\"\u003ELouisa May Alcott School\u003C\/a\u003E","lat":39.33294,"lon":-76.66294,"otherValues":{"architect":"\u003Ca href=\"\/index.php\/Otto_G._Simonson\" title=\"Otto G. Simonson\"\u003EOtto G. Simonson\u003C\/a\u003E","completion date":1910},"icon":"\/images\/3\/33\/Orange-marker.png"}]
Library 
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Church 
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Government 
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Commercial 
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Dwelling 
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Park 
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Educational 
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Listing
