We’ve teamed up with National Rail and Ripley’s Believe It or Not! London to give you a chance to win a fantastic prize. One lucky reader will receive four first class return rail tickets to London (two adults and two children) and a family pass (for two adults and two children) to Ripley’s Believe It or Not! London.

With more than 700 authentic artefacts and astonishing interactive exhibits spanning six floors, Ripley’s Believe It or Not! London celebrates the weird, wonderful and bizarre in all its forms. It’s sure to excite, delight and thrill everyone aged eight to 108. For more information, please visit www.ripleyslondon.com.

Travelling by train is the best way to see London’s attractions for less, and you don’t have to be a competition winner to enjoy the benefits of great value train tickets and offers. There are more than 150 great 2FOR1 offers, including restaurants and theatres, when you travel by train to London. Choose from classics like the EDF Energy London Eye, Cutty Sark, ZSL London Zoo and Madame Tussauds. Plan your journey and download your 2FOR1 vouchers at daysoutguide.co.uk or pick up a 2FOR1 London leaflet from your local National Rail station.

Why not take advantage of GroupSave - where three or four people can travel together for the price of two off-peak on the National Rail network in the London and South East area. What’s more, up to four accompanying children (aged five to 15) can travel with the group for just £1 each!

For your chance to win, answer the following question: How many floors do Ripley’s believe it or not exhibition cover?

How to enter: By phone: Simply call 09011510317 and leave your answer and details when prompted.

By text: Send your text to 80360 starting with NATIONAL leave a space, followed by your answer, name and contact details.

Calls cost no more than 51p per call from a BT landline. Calls from mobiles and some other networks may cost more. Texts cost 50p plus your normal operator text charge. Telephone and text voting lines open 21/11/2013 and close 27/11/2013 at 23:59.

For full terms visit: www.newsquest.co.uk/terms Service Provided by Newsquest Media Group.