Final answer:
Lewis and Harris are part of the Outer Hebrides archipelago in Scotland, known for its beautiful landscapes.
Step-by-step explanation:
The archipelago that has Lewis and Harris is the Outer Hebrides in Scotland. Lewis and Harris are two separate islands that are part of this archipelago. Lewis is the northern part of the island, while Harris is the southern part.
The archipelago is known for its beautiful landscapes, including stunning beaches and rugged mountains.