El puente peatonal de North Bank por la noche, en Cambridge, Massachusetts . - Foto e imagen de stock

The North Bank Pedestrian Bridge at night, in Boston, Massachusetts.

The North Bank Pedestrian Bridge at night, in Cambridge, Massachusetts.

The Bell Street Pedestrian Bridge, in Seattle, Washington.

Passenger in the shanghai pudong airport

Bike path under the Zakim Bridge in Boston, Massachusetts.

The Bell Street Bridge at night, in Seattle, Washington.

The Puente de Luz Pedestrian Bridge at sunset, in Toronto, Ontario.

The Howard Street Bridge, in Baltimore, Maryland.

Spiral walkway in Clearwater, Florida.

The North Bank Pedestrian Bridge and Leonard P. Zakim Bunker Hill Memorial Bridge at night, in Cambridge, Massachusetts.

View of the Jones Falls Expressway at night, in downtown Baltimore, Maryland.

The Schuylkill Banks Boardwalk, in Philadelphia, Pennsylvania.

The Puente de Luz Pedestrian Bridge, in Toronto, Ontario.