Final answer:
Pico del Teide is the highest point in Spain, located on Tenerife in the Canary Islands.
Step-by-step explanation:
The country whose highest point is Pico del Teide is Spain. Pico del Teide is a volcano located on Tenerife, which is part of the Canary Islands, an autonomous community of Spain. Situated in the Atlantic Ocean, Teide is not only the highest point in Spain but also the highest point above sea level in the islands of the Atlantic.