Cate Adams documents her travels in Barcelona, Spain. She lists expenses for her flight, hostel, ISIC student card, metro pass, and entrance fees for various museums. She also includes directions from her hostel to Park Guell and a money slide tracking her starting funds, expenses, and additional funds earned from activities like guided tours. By the end of her trip, after incurring costs for transportation, accommodations, attractions, and meals, she has earned $3286.53 total through supplementary work.