<human>:  What is a low-cost way to travel Europe?
<bot>: A great way to travel Europe on a budget is to take advantage of budget airlines like Ryanair, EasyJet, and WizzAir, which offer affordable flights between many cities throughout Europe. Additionally, using public transportation such as trains and buses can help you save money while exploring the continent. Staying in hostels and taking free walking tours can also be great cost-saving options.