ClipArt ETC
A fortified building situated between two sharp hills at the edge of a lake. Two men are launching a boat.

Fortification

A fortified building situated between two sharp hills at the edge of a lake. Two men are launching a…

An illustration of a man laying on a raft floating down a river.

Man on Raft

An illustration of a man laying on a raft floating down a river.

An illustration of a group of men on a raft.

Men on Raft

An illustration of a group of men on a raft.

A raft, showing early use of the sail.

Raft

A raft, showing early use of the sail.