If you have the time, Gibraltar is certainly worth a visit. Drive 2 hours for an overnight stay and spend a full day or two. There are opportunities to shop duty free, however bring a large wallet with you, hotels are not cheap.
Gibraltar may be small on the map, but is certainly not unimportant, which history also shows.
With its strategic location at the entrance to the Mediterranean Sea, the Gibraltar peninsula has always been among the Great Powers.
The UK ran of with victory at the latest, and therefore the country is today a small piece of England, and a booklet of Spain.
Among the attractions are the Gibraltar Museum and the beautiful stalactite cave St. Michael Cave.
One of the biggest attractions on the peninsula is the wild Barbary Macaque.

The monkeys live on Gibraltar rock, and they are a major tourist attraction.
There are lots of opportunities to get to the top of the rock. And if you don't want to drive your self, there are plenty of minibuses and drivers offering a ride up the cliff, to see everything that is called history, and naturally the funny monkeys.
You might even get the chance to see dolphins up close. There are several different boats that offer trips out to sea (close to Morocco).