I’ve visited the sites marked with an asterisk * and can recommend them. But since things change over time, I’d suggest researching sites online when planning your itinerary. (This page is best viewed on a computer or laptop.)
Country
City
Site
Algeria
Lambaesa
Lambese Musee Municipal
Algeria
Algiers
Algiers Museum
Algeria
Timgad
Timgad Museum
Algeria
Cherchel
Roman Mosaics
Algeria
Djemila
House of Bacchus
Australia
Melbourne
Metropolitan Fire Brigade*
Australia
Melbourne
Luna Park
Australia
Sydney
Skygarden
Australia
Canberra
Australian War Memorial
Australia
Brisbane
International Airport*
Australia
Geelong, Victoria
State Government Office
Australia
Perth
Train Station
Austria
Vienna
Secessionist Building by J. Olbrich
Austria
Vienna
Kunsthistorishes Museum*
Austria
Vienna
Oesterrichs Museum fur Angewandte Kunst
Belgium
Brussels
Palais Stoclet (Klimt)
Brazil
Rio de Janeiro
Teatro Municipal by Domenico Fachina*
Brazil
Rio de Janeiro
Copacabana Beach pavement*
Brazil
Rio de Janeiro
Princesses Garden in the area of “Quinta da Boa Vista”
Canada
Ontario
Holy Trinity Anglican Church
Canada
Toronto
Canadian Opera Company
Croatia
Porec
Cathedral of Eufrasuius
Cuba
Havana
Capitol
Cuba
Soli
Basilica
Cyprus
Kiti near Larnaca
Church of Panagia Angeloktistos*
Cyprus
Paphos
Roman Ruins*
Czechoslavakia
Prague
St Vitus Cathedral
Denmark
Copenhagen
Kunstindutrimuseum
Egypt
Alexandria
Archaeological Park
Egypt
Alexandria
Graeco-Roman Museum
Egypt
Cairo
St Mary Coptic Church*
Egypt
Cairo
National Museum*
Egypt
Mt. Sinai
Monastery of St Catherine
France
Paris
Louvre*
France
Paris
Pasteur Institute*
France
Paris
Sacre-Couer*
France
Paris
Saint-Jean-Baptiste de la Salle
France
Paris
National Opera*
France
Paris
Cemetary of S.Genevieve du Bois (Russian Cemetary) Tomb of Rudolf Nureyev*
France
Paris
Unesco House by Jean Bazaine*
France
Paris
Viry Noureuil
France
Paris
Junk Garden of Bodan Litnanski
France
Chartres
Maison Picassiette*
France
Happonvilliers (near Chartres)
Les Jardins de la Feuilleraie
France
Versailles
Grand Trianon*
France
Germigny-des-Pres
Oratory of Theodulf*
France
Biot
Musee Leger
France
Burgundy
Autun
France
Ganagobie
Monastery
France
Hauterives
La Palais Ideal
France
Nice
Faculty of Law at University, by Chagall
France
Nice
Chagall Museum*
France
Lyon
Gallo-Roman Museum
France
Pau
Seviac*
France
Rouen
Museum of Antiquities
France
Vienne
Museum Lapidaire
France
Vienne
Saint-Romain-en-Gal
France
Arles
Antiquities Museum*
Germany
Frankfurt-am-Main
Dresdner Bank by Heinz Mack
Germany
Frankfurt-am-Main
Landeszentralbank
Germany
Darmstadt
Exhibition Hall
Germany
Berlin
Kaiser Wilhelm Gedachtnis Kirche*
Germany
Berlin
Berlin State Museum
Germany
Hamburg
Sankt Nikolai
Germany
Stuttgart
IBM Centre
Germany
Essen
Villa Krupp
Germany
Essen
Synagogue
Germany
Baden-Baden
Casino*
Germany
Saarbrucken
Nennig
Germany
Trier
Reinsiches Landesmuseum
Greece
Athens
Monastery of Saint Irene
Greece
Athens
Church at Daphni*
Greece
Athens
Byzantine Museum*
Greece
Chios
Monastery of Nea Moni
Greece
Crete
Kasyelli Kisamon
Greece
Eretria
House of Mosaics
Greece
Loukas
Church of the Monastery of Hosios
Greece
Island of Delos
Archaeological Site*
Greece
Ancient Corinth
Archaeological site and Museum
Greece
Phocis
Church of Hosios
Greece
Salonika
Pella, Pebble mosaics
Greece
Salonika
Church of Hosios David
Greece
Salonika
Basilica of Eski-Djouma
Greece
Salonika
St. Demetrius
Greece
Salonika
St. George
Greece
Salonika
Santa Sofia
Greece
Thebes
Monastery of St Luke of Stiris
Greece
Olynthos
pebble mosaic
Greece
Daphni
The Catholicon
Hong Kong
Hong Kong
Hong Kong Bank
India
Chandigarh
Rock Garden by Nek Chand
Israel
Bethlehem
Church of the Nativity
Israel
Jerusalem
The Knesset, by Marc Chagall
Israel
Jerusalem
Armenian Church
Israel
Jerusalem
Dome of the Rock, Mosque of Omar
Israel
Jerusalem
Mosque El Aksa
Israel
Gaza
Synagogue
Israel
Beth Alpha
Synagogue
Israel
Hammath Tiberius
Roman Spa
Israel
Tzippori
Archeological site of Sepphoris