Kasbah Square, a monumental plaza at the entrance to Medina, holds deep significance in Tunisia’s history. Once the site of a fortified citadel (demolished post-independence), it now anchors administrative buildings like Tunis City Hall and the National Monument — a memorial to pivotal national events. Facing the iconic Kasbah Mosque, the square blends tradition and modernity with its red Tunisian flags and iconic black lanterns. Since 2011, it has also become a gathering place for political demonstrations, including historic sit-ins demanding government reform.

Housed in a large former power station, Tate Modern is Britain's leading art gallery when it comes to modern and contemporary art. As well as the Tate's much anticipated exhibitions, there's a fantastic permanent collection to explore. It features works by artists as diverse as Matisse, Picasso, Rothko, Pollock, Warhol and Bourgeois.

In some cities you can take an elevator to the top of one of the tallest buildings in the world and be gobsmacked by extraordinary views. Hobart doesn’t need to do skyscrapers. At 1270 metres kunanyi / Mt Wellington is more than twice the height of the world’s tallest building.

The 17th century St Paul's Cathedral on Ludgate Hill is one of the capital's most iconic buildings. Designed by the illustrious Sir Christopher Wren, St Paul's was the tallest building in London until as late as 1962. Use the touchscreen multimedia guides or take a guided tour to learn about the famous interior or, if you're feeling fit, climb up to the Whispering Gallery and try out the acoustics. From there you can carry on making your way up to the Golden Gallery atop the dome, where you'll be rewarded with breathtaking views of London. You can also descend into the crypt where you'll find memorials of important historical figures such as Admiral Lord Nelson.