Rivers

For many years, the river that Julius Caesar led his army across into Italy was lost until re-identified.

Now abandoned, the first reinforced concrete bridge in Alabama still stands over the Pea River.

Raised high above the Cimarron River, this 1,268-foot rail bridge followed a half-century of trainwrecks, bridge collapses, and an abandoned town.

An improbable water gap where the West Walker River, paralleled by a state highway, crosses the Singatse Range between Smith and Mason Valleys.

Stand at the point where the two mightiest rivers in the United States converge.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

This remote river crossing was a popular campground on American westward expansion trails, and a former Pony Express station.

The river-powered ferry dates back to 1970s.

This municipal park along the Missouri River honors the galley central to the Lewis & Clark Expedition with a replica ship and sculptures.

The drawbridge used in the filming of the movie 'Annie' has been in the open position as it was in the movie for decades.

This observation tower is a longstanding, 1960s landmark in the Thousand Islands region of Canada.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

Besides being home to cave paintings and pre-Columbian Cuban archaeological remains, you get to take a boat through this stalactite and stalagmite covered cave.

This impressive chasm is one of the longest natural underground cavities in the world.