The fierce warriors who terrorized large areas of Europe during the middle ages are commonly known today as Vikings. What made them so noteworthy? Their awesome fighting ability? The fear they struck into coastal communities?
No, it was their ships.
Viking longships were skillfully built in order to be tough and flexible. Their shallow drafts allowed them to navigate up rivers, yet their broad beams made them stable enough to cross large areas of the north Atlantic.
This web page covers in detail the processes used to build these amazing craft. From the log to the final product, you can see each detail of the construction.