Edificios a lo largo de Franklin Street en Boston, Massachusetts . - Foto e imagen de stock

Old and modern buildings in downtown Baltimore, Maryland.

Looking up at modern buildings and old architecture in Boston, Massachusetts.

Buildings in Center City, Philadelphia, Pennsylvania.

Buildings in downtown Los Angeles, California.

Old architecture in Boston, Massachusetts.

Buildings along Franklin Street in Boston, Massachusetts.

Skyscrapers in the Financial District, Lower Manhattan, New York.

The Park Row Building, in Lower Manhattan, New York.

Modern skyscraper in downtown Los Angeles, California.

View of buildings on Calvert Street from a parking garage in Baltimore, Maryland.

View of skyscrapers along Lombard Street from a parking garage in Baltimore, Maryland.

Buildings in downtown Baltimore, Maryland.

Cluster of highrises in downtown Baltimore, Maryland.

Cluster of buildings in downtown Boston, Massachusetts.

Buildings in downtown Baltimore, Maryland.