Local transport on the Sangha River, Ouesso, Republic of Congo

Tug boat crossing the Panama Canal, Gatun locks, Republic of Panama, Central America

Local ferry boat, Backwaters, Kerala, India

Typical rice boat on the Backwaters, Kerala, India

Vembanad Lake, Kerala, India

Backwaters, Kerala, India

Expressway Tunnel Ventilation System Building at dusk, USA, Massachusetts, Boston, Fort Point Channel