Venture 27 kilometres north of Arrecife to discover some of the world's most awe-inspiring caves. The Jameos del Agua subterranean complex, formed 3,000 years ago by a volcanic eruption, boasts an array of volcanic formations, including lakes, caves, courtyards, and even a subterranean auditorium that regularly hosts concerts. Adjacent to Jameos del Agua, you'll find the remarkable Cueva de los Verdes, a lava tube situated within the protected area of Monumento Natural del Malpaís de La Corona. This tourist attraction features 7-kilometre-long tunnels and a mesmerising subterranean lake in its largest cave.

Taronga Zoo is a delightful ferry ride across the harbour from Circular Quay. With spectacular harbour views, the award-winning zoo is home to more than 4,000 animals. Kangaroos, koalas, platypus, wombats, wallabies, emus and crocodiles live side by side with gorillas, tigers, snow leopards, bears, chimps, giraffes, zebras and elephants in this zoological garden. The zoo is a must-do for families and people of all ages. Don't miss the amazing bird and seal shows.

The treasury of Aachen Cathedral is regarded as the most important north of the Alps, featuring over 100 art pieces across various themes. Highlights include the Cross of Lothair, the Bust of Charlemagne, and the Proserpina sarcophagus. The museum offers a remarkable insight into religious and historical art.

In the heart of Chiang Mai lies Wat Chedi Luang, a massive, ancient Buddhist temple, dating back to the 14th century. It boasts a towering chedi (stupa) that once soared to greater heights before succumbing to an earthquake in 1545. Despite its partial collapse, the grandeur of Wat Chedi Luang continues to mesmerise travellers, who flock to marvel at its intricate architecture and serene ambiance. As the sun casts golden hues upon its weathered stones, visitors are transported to a bygone era, where whispers of history and spirituality intertwine, leaving an indelible impression on all who wander its sacred grounds.