Checkpoint Charlie, the most famous of the inner-German border crossing points and a name known the world over, was where Allied border guards would register members of the American, English and French Armed Forces (and their families) before they visited East Berlin. The "Wall Museum – Museum House at Checkpoint Charlie” is right next to this major tourist spot. The museum displays an incredible number of the original means and tools that people used in their escape out of the GDR: from the hot-air balloon to a mini-submarine, plus plenty of real and fake travel documents.

With a very self-explanatory name for a diving festival, Dive Fest delivers exactly what it says on the packet. Surrounded by a crystal clear tropical ocean, Saint Lucia is the ideal place for scuba diving enthusiasts. Get your gear on and be prepared for what the Caribbean Sea has to reveal. You will see the most colourful and majestic of marine wildlife effortlessly gliding past you in the tranquil waters at one of the island's more than 22 world-class diving sites. Take part in the events organised around the theme of scuba diving and join in with the fun.

Check out the magnificent caves at Puente Viesgo (24 kilometres from Santander), where stalactites and stalagmites stretch among incredible prehistoric paintings. The village itself is also worth a look around. Tours start at the visitor centre 1.5 kilometres above the village.