Studio 56 is pleased to recommend this book.
Carreras, Bartolomé and Lapin's "Barcelona: Five Routes for Sketching Travelers" offers brief illustrative texts, drawings, and maps of sketching locations followed by fully blank pages.
Layers of Looking Online Workshop with Ian Fennelly
Ian Fennelly's Sketch Tour of Europe
Design on the Fly Online Workshop
Mug 11oz. Fancy That design by Mike Daikubara. Cheaper shipping outside US