The world around us is always changing and evolving. From day-to-day it can be difficult to see these little changes happen slowly. This is why photographic records are so important. They freeze moments in time that we will never get back. Here are 16 old and modern views of some of the most important cities in the world. You won't believe how much they've changed in 100 years! Take a look, it's awesome!
New York City, USA
Sydney, Australia
Alexandria, Egypt
Milan, Italy
Saint Petersburg, Russia
Barcelona, Spain
Bangkok, Thailand
Istanbul, Turkey
Lagos, Nigeria
Mexico City, Mexico
Beijing, China
Paris, France
Delhi, India
Berlin, Germany
Tokyo, Japan
London, UK
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