Ottawa, Ontario, Canada

Niagara river close to Niagara on the lake, Ontario, Canada

Montreal, Quebec, Canada

Chicago, Illinois, United States

Grand Teton National Park, Wyoming, United States

Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States

Emerald Lake, Lassen Volcanic National Park, California, United States

Vienna, Austria

Old city, Bucharest, Romania

Amphitheatre of Epidaurus, Greece

AcroCorinth, Corinth, Greece