The Willis Tower—formerly known as the Sears Tower—and the Pittsfield Building, among other skyscrapers, form part of the Chicago skyline.
The T&P Warehouse, an abandoned structure located at the southern tip of Downtown Fort Worth in Texas, stands as a testament to architectural history, its details reflecting a past era of industrial prowess.
The 172-foot (52 m) spire of the Frank Lloyd Wright-designed Marin County Civic Center pierces the morning sky over San Rafael, California.