Welders are suspended outside the unfinished structure of a high-rise building in Boston's financial district.
Visitors, Grand Prismatic Spring
Two visitors to the Grand Prismatic Spring walk along the boardwalk suspended over the steaming hot spring waters.
Parking, Government Center
The parking garage at Government Center is jagged in the afternoon sun.
From a second-level balcony, a passage between areas of the Royal Ontario Museum's "Michael Lee-Chin Crystal" annex can be seen, marked by an illuminated "exit" sign.
A lone construction worker looks out over the Georgetown neighborhood in Washington, D.C., phone to his ear.
Elizabeth Tower, Sidewalk View
The face of Big Ben stands high above the sidewalk along Bridge Street, London.
The balconies of the Atlas Suites reflect in the windows of an office building across John Street in downtown Toronto.
A hydraulic crane rises in front of the Langham Hotel in downtown Boston.
The exposed frame of a modern building under construction in London, UK.
Stone columns support a massive rock terrace at Park Guell, the famous architectural garden complex in Spain designed by Antoni Gaudi.
A face of the derelict Edward J. Sullivan Courthouse can be seen across a snow-covered ledge of the First Street parking garage in Cambridge, Massachusetts.
70 University Avenue
From the street below, the geometric segments of this Toronto office building form an imposing wall of glass.
The glass and steel supporting structures of the Federal Judicial Center building in Washington, D.C. almost look like impenetrable cobwebs.