Two folders containing 67 original pen-and-ink sketches, organized alphabetically by location:

• A flower analysis
• Amsterdam, Berlage, Stock Exchange
• Amsterdam, DeKlerk, Eigen Haard housing
• Amsterdam, railings
• Andorra, Spain, Bofill, Sanctuary of Mexitell
• Apeldoorn, Netherlands, Hertzberger, Centraal Beheer
• Arc-et-Senans, France, Ledoux, salt works column
• Arles, France, Arena, passages
• Assisi, Italy, pathway with steps
• Assisi, Italy, street
• Barcelona, Bofill, Walden-7 housing, cement factory-RBTA office
• Barcelona, Bofill, Walden-7 housing, cement factory
• Barcelona, Bohigas & MacKay, Garbi school
• Barcelona, Gaudi, Casa Mila, Casa Barilto
• Barcelona, Gaudi, Casa Mila, rooftop stairs
• Barcelona, Gaudi, chapel ceiling
• Barcelona, Gaudi, Parc Guell, passage
• Barcelona, Gaudi, Parc Guell, steeple
• Barcelona, Gaudi, Sagrada Famalia, Parc Guell, Gothic cathedral
• Barcelona, Sert, Foundacio Juan Miro
• Bellinzona, Switzerland, Campi, Museo Civico nel Castello di Montebello
• Bern, Switzerland, arcade
• Bern, Switzerland, Rathasgrasse
• Bern, Switzerland, Rathasgrasse
• Boswill, Switzerland, stone steps
• Bre, Switzerland, steps
• Carcasonne, France, inside fort walls
• Carcasonne, France, turrets
• Carona, Switzerland, passages
• Carona, Switzerland, portals, passages
• Corippo, Switzerland, streets
• Dole, France, Commune turret
• Eveux, France, Corbusier, La Tourette Convent, chapel
• Eveux, France, Corbusier, La Tourette, entrance view of courtyard
• Eveux, France, Corbusier, La Tourette, exterior
• Florence, Italy, passages
• Florence, Italy, street
• Le Thoronet, France, Cistercian Abbey
• Les Baux, France, ruins
• Les Baux, France, stairs
• Lucciagnano, Italy, church
• Lugano, Switzerland, Mont Bre
• Lugano, Switzerland, street with steps
• Luzern, Switzerland, Jesuit church
• Milano, Italy, Santa Maria Della Gracie
• Montebello
• Morbio Inferiore, Switzerland, Secondary School
• Narbonne, France, cathedral nave
• Nimes, France, Arena, portals
• Nimes, France, paving, railing
• Nimes. France, Aux Heroes Et Matyrs
• Orvieto & Assisi, Italy, portals
• Paul Klee, painting analysis
• Rome, Italy, Bernini, colonnade
• Rome, Italy, Bernini, Piazza Narvonna
• Ronchamp, France, Corbusier, Chapelle Notre Dame du Haut
• Sarnen, Switzerland, windows
• Schaffhausen, Germany, arches
• Schaffhausen, Germany, rooftops
• Siena, Italy, Piazza Della Campo
• Siena, Italy, Via Della Galluza
• St Martin's Kirsche
• Stein AmRhein, Germany, street
• Stein AmRhein, Germany, windows
• Tivoli, Italy, Hadrian's Villa, portals
• Turin, Italy, arcade
• Turin, Italy, shopping arcade
• unknown location
• Zurich, Switzerland, arcade