Watervliet Avenue Viaduct, torn down sometime after 1952
improve footprint for 3rd depot. add Troy Hospital
improve footprints for 3rd depot, RPI Main Building
change Van der Heyden mansion end date
add Van der Heyden Mansion end_date
add footprint of 4th Union Station
Old Bank Place from 1885 Sanborn Insurance map - first RPI location
more details from 1873 map, 1952 aerial
additional tags, plus RR tracks, Troy 1873
local landmarks from 1873 Troy City Directory Map
initial map of original Sunshine Skyway completed
initial map of original Sunshine Skyway completed
initial map of original Sunshine Skyway completed
add section of original Sunshine Skyway Bridge, Tampa Bay, Florida
adjust start date for Broad Street