Head to the Midwest and tour the downtown cityscape of Ohio's state capital.

Watch morning boat traffic on Sydney Harbour from beneath the famous Sydney Harbour Bridge.

A trip from the Cusco railway to the great ruins of the Inca Empire.

A twilight visit to Chicago Harbor, including a trip to the illuminated Navy Pier.

Imagine yourself in the 12th century as you stand at the foot of a historic riverfront castle.

Watch one of the world's most famous and accessible waterfalls move 750,000 gallons of water each second.

A stormy nighttime look at a cityscape on the edge of "Tornado Alley."