Gibraltar is probably what you're after; it's a self governing British overseas territory.
I don't believe there are any territories inside a sovereign nation except embassies and consulates. Gibralter is a British territory located on the Iberian Peninsula next to Spain. It is not "in" Spain.
Yes. Gibraltar is a British Overseas Territory Spain
Gibraltar is a self governing British Overseas Territory which is geographically attached to Spain.
Gibraltar is a territory, not a colony, of the United Kingdom claimed by Spain.
Spain borders France, Portugal and Andorra and the British territory of Gibraltar.
Spain did.
None. Gibraltar is a British territory, across the border from southern Spain.
New Spain
The "rock" you inquired about is the British self governing territory of Gibraltar. Spain ceded the territory to Britain with the Treaty Of Utrecht in 1713.
Gibraltar is a British Overseas Territory but Spain has claimed sovereignty of 'the rock'.
The Crown Territory of Gibraltar.
The countries that border Spain are France, Portugal, Andorra, Morocco, and the United Kingdom territory of Gibraltar.