Europe:

Verona, Italy
Island of Hvar, Croatia
Ljubljana, Slovenia
Assisi, Italy
Braunschweig, Germany
Dhekela Garrison Cyprus
Pas de la Casa, Andorra
Vienna, Austria
Istanbul, Turkey
Vigo, Spain
Sornico, Italy
Prague, Czech Republic
Villars, Switzerland
St. Germain-en-Laye, France
Lagos, Portugal
Oporto, Portugal
Hurum Peninsula, Norway
Armacdo la Pera, Portugal
Carbonara Valley, Italy
Kalloni,Greece
Istanbul, Turkey
Paris, France
Trondheim, Norway
Akureyri, Iceland
Berlin, Germany
Krakow, Poland
Lauterecken, Germany
Serra del Cadi, Spain
France-Italy Border
Venlo, Netherlands
Salach, Germany
Borajow, Poland
Czech Republic
Mittelherwigsdorf, Germany
Padua, Italy
Kefallonia, Greece
Palma Nova, Spain
Varna, Bulgaria
Rome, Italy
Schiphol, Netherlands
Milan, Italy
Moscow, Russia
Zakynthos, Greece
Rhodes, Greece
Denmark Strait, Arctic Circle
Nijmegen, Netherlands
Krakow, Poland
Dresden, Germany
Helsinki, Finland
Strasbourg, France
Venice, Italy (mostly)
Gandia, Spain
Budapest, Hungary
Are Fjallby, Sweden
Podilsky, Ukraine
Prague, Czech Republic
Pas de la Casa, Andorra
Baden, Switzerland
What might have been Rome...
Morzine, France
Are Fjallby, Sweden
Kuhmoinen, Finland
Oslo, Norway
Farsund, Norway
Aix en Provence, France
Rothenberg, Germany
Cesky Krumlov, Czech Republic
Stockholm, Sweden
Hersonisos, Greece
Carcassonne, France
Pompeii, Italy
Riga, Latvia
Lyon, France
Kassiopi, Corfu
Gibraltar
Thorsmork, Iceland
Soll, Austria
Budapest, Hungary
Torshaven, Faroe Islands
Amsterdam, Netherlands
Sevanavank, Armenia
Varzia Monastery cave complex, Georgia
Girne Harbour, N. Cyprus
Mount Tiede, Tenerife (holiday high place challenge)
A beach in Tenerife (holiday low place challenge)
Verona, Italy
Brescia, Italy
Pompeii, Italy
Algarve, Portugal

Africa:

Mount Kenya, Kenya
Dar es Salaam, Tanzania
Mwadui, Tanzania
Dar es Salaam, Tanzania
Abu Simbel, Egypt
Drakensburg Mountains, South Africa
Lesotha
Kagadi, Uganda
4 metres off the Tunisian Coast

Asia:

Singapore
Tokyo, Japan
Bangkok, Thailand
Dalian, China
Yangon, Myanmar
Golden Rock Pagoda, Myanmar
Ulaan Baatar, Mongolia
Mirpur, Azad Kasmir
Kund, Pakistan
Deena, Pakistan
Muree, Pakistan
Lahore, Minarte-Pakistan
Islamabad, Pakistan
Makkah, Saudi Arabia
Medina, Saudi Arabia
Dubai, United Arab Emirates
Mumbai, India
Goa, India
Mongolia
Kowloon, Hong Kong
Lantau Island, Hong Kong
A couple of hot places
Jeddah, Saudi Arabia
Victoria Reservoir, Sri Lanka
Mecca, Saudi Arabia (Masjid-Al-Haram)
Queen Alya International Airport, Jordan
Medina, Saudi Arabia (Masjid Al-Nabawi)
Uhud, Saudi Arabia
Medina, Saudi Arabia (Masjid Qiblatain)
Medina, Saudi Arabia (Masjid Quba)
Goa, India
Mumbai, India
Desert near Amman, Jordan
Dubai and Bahrain
Kurjey Lhakang, Bhutan
Punakha Dzong, Bhutan
Dubai, United Arab Emirates

Americas:

Whistler Mountain, Canada
Blackcomb Mountain, Canada
Falkland Islands
Mexico City, Mexico
Camphill Village, USA
St. James, Barbados
New Orleans, USA
Miller's Falls, USA
New York City, USA
St. Georges, Grenada
Manaus, Brazil
Santarem, Brazil
New York City, USA
Jamaica
Toronto, Canada
Niagara Falls, Canada
New Orleans, USA
Wendell State Forest, USA
Longwood Gardens, USA
Kiln, USA
New Orleans, USA
Port of Spain, Trinidad Mairipora, Brazil
National Center for Toxicological Research, USA
Jackson, USA
Jefferson, USA
Kansas City, USA
Little Rock, USA
New Orleans, USA
Memphis, USA

Australasia:

Samoa
Hawaii
Perth, Australia
Sydney, Australia
Melbourne, Australia
Kaikoura, New Zealand
Hallidays Point, Australia
Witsunday Islands, Australia
Perth, Australia
Sydney, Australia
Top of Uluru, Australia