Iguassu Falls, straddling the border between Brazil and Argentina, is a breathtaking natural wonder that captivates visitors with its sheer scale and beauty. This UNESCO World Heritage Site boasts the largest waterfall system in the world, with nearly 275 individual falls cascading over a rugged landscape.

Traditionally regarded as the highest navigable body of water in the world (in reality there are higher lakes in Chile and Peru), Lake Titicaca is immense: its dimensions measure 233km from north-west to south-east and 97km from north-east to south-west. The lake has an indented shoreline, 36 islands and exceptionally clear sapphire-blue water.

Delhi is a sprawling metropolis in North India that contains the country's capital, New Delhi. Life is abuzz and hectic here, with traffic going every which way. A huge population shuffles through Delhi's streets, alleys and food and spice-selling bazaars, and it's quite memorable to be a part of it all.

This charming little capital town of Slovakia is the perfect destination for those who want a European experience with a quieter and less crowded feel. You could spend hours strolling the cobblestone streets of the Gothic old town, or the beautiful Bratislava Castle, a restored Baroque castle.

The Falkland Islands are located about 300 miles off the southern coast of South America. The island is inhabited mostly by sheep farmers, and the only tourism the islands see is by cruise ships.