Why you should go: Escape to Cornwall this summer and wander through the atmospheric halls of Bodmin Jail Hotel. Built in the 18th century and once a grizzly prison, Bodmin Jail is now "the forerunner of industrial chic design" (The Times), complete with underfloor-heated bathrooms and champagne bar, following a multimillion-pound renovation. 

What's the big deal? Travelzoo members can lock in a 54% saving. Two nights' accommodation for two, including breakfast and £35-per-person dining credit to use in either of the hotel's two restaurants, is now £369. This deal also includes a self-guided tour of the award-winning Bodmin Jail attraction.