Affordable Poland has many incredible historical destinations, including 16 UNESCO World Heritage Sites. The country offers many spa, wellness, hiking and yoga retreats in places such as Ciechocinek and Krynica-Zdroas. Thirty percent of the country is covered in woodland and its Białowieża Forest is one of the last remnants of the primeval forest that once spanned the European Plain - you can hike many forest hideaways.