I toured the Becuna, a WWII warship and the only submarine of its kind left in the world. Take a look inside.

I visited Philadelphia's Independence Seaport Museum in February to tour the singular submarine with Greg Williams, the museum's manager of historic ships. Take a look inside. The USS Becuna ...

As the world's first nuclear-powered submarine, Nautilus could remain submerged ... I visited the museum in March to tour Nautilus. Take a look inside. Between 1954 and 1980, the USS Nautilus ...

I visited Philadelphia's Independence Seaport Museum in February to tour the singular submarine with Greg Williams, the museum's manager of historic ships. Take a look inside. The USS Becuna completed ...

I visited Philadelphia's Independence Seaport Museum in February to tour the singular submarine with Greg Williams, the museum's manager of historic ships. Take a look inside. The USS Becuna completed ...