Exterior view of the abandoned Damen Grain Silo, in Chicago, IL; shows the Willis Tower in the background.

Exterior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Interior view of the abandoned Damen Grain Silo, in Chicago, IL

Exterior view of the abandoned Union Station Power House, in Chicago, IL

Exterior view of the abandoned Union Station Power House, in Chicago, IL

Exterior view of the abandoned Union Station Power House, in Chicago, IL

Exterior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Interior view of the abandoned Union Station Power House, in Chicago, IL

Exterior view from the roof of the abandoned Union Station Power House, in Chicago, IL

Exterior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Exterior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of the demolished Coleman Company Factory Building, in Wichita, Kansas

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Exterior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Exterior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Interior view of The Fields, in Chicago, IL, prior to development by Harken Interiors and Hubbard Street Group

Exterior overall view of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Exterior overall view from the back of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view showing offices in the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view showing offices in the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view showing a production area of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view showing a production area of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view showing a production area of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Interior view showing a production area of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Exterior view on the roof of the abandoned Fisher Body Plant 21, in Detroit, Michigan

Exterior view on the roof of the abandoned Fisher Body Plant 21, in Detroit, Michigan