Ahead of the London Marathon this weekend, Asia touring specialist Wendy Wu Tours has pulled together other marathons taking place around Asia that keen runners can take part in.

The Great Wall Marathon, China (20 May 2017)

Celebrating its 18th year, this is recognised as the most challenging marathon in Asia. Nearly 3,000 runners attempt to conquer the Great Wall's 5,164 steps, reaching elevations of over 500m from the start line. The route travels along both restored and more traditional sections of the wall, as well as going through local villages and the picturesque surrounding hills, making it one of most unique marathons in the world.

The Angkor Empire Marathon, Cambodia (6 August, 2017)

Taking place in the Angkor Archaeological Park in Siem Reap, Cambodia, this picturesque marathon takes in several UNESCO Heritage Sites, including Angkor Wat, Bayon Temple, Ta Prohm and Pre Rup. The race begins and ends in front of the majestic Angkor Wat, with the race beginning at 4.30am so that participants can experience the famous sunrise and avoid the heat of the day.