The historic 150-year-old Al Masmak Fortress has a citadel made from clay and mud and it's an ideal spot to start a tour of the city. Al Masmak, meaning a high, strong and thick building, is the heart of Riyadh's history. In 1902 it was captured by King Abdulaziz, who took control of Riyadh, and from here conquered and united the different regions to make up the modern-day Kingdom of Saudi Arabia. After being an ammunition warehouse and a prison, today it is a museum.

This huge museum could take you all day - as there are eight halls to explore and soak in the culture of Saudi Arabia. The Kingdom's biggest museum, there are cultural and art exhibitions too, housed in a striking, modern building. The museum is home to intriguing Neolithic rock art, replicas of old buildings in Jeddah, interactive tours and regularly changing displays.

Start in the Al-Turaif District. Join your tour guide and wander through the fascinating architecture, with one of the highlights being the Salwa Palace. This is the most photographed place in Diriyah. It used to be the home of the royal family and is one of the key locations in Saudi history. Explore the narrow streets and the mudbrick homes.

Boasting the highest views of Riyadh (and well beyond), the capital's Sky Bridge on the 99th floor of the Kingdom Center is a must-visit destination in the capital. Head here at sunset for a jaw-dropping display as the sun disappears behind the curvature of the earth, while the dazzling sights light up, and the city comes alive as night falls.

A short distance away from the National Museum is Murabba Palace. This was the home and court of King Abdul Aziz, founder of modern Saudi Arabia. A historical centre showcases various memora- bilia and the palace's gardens are a must-visit in the cooler months.

The famous mountains of Jebel Fihrayn - otherwise known as The Edge of the World - is one of the most incredible places to visit. Set around 90-minutes drive away to the outskirts of the city, it stretches 600km as part of the Tuwaiq cliffs. You can take an official tour if you want to drive to the base, and from there you can walk for about half an hour to the peak, which is 300m above sea level. There are also even more challenging hikes for more advanced adventurers. Set up camp under the stars The Edge of the World is a super popular place to camp, with stunning scenery and a unique place to camp under the stars.