This year's National Geographic Travel Photographer of the Year contest is now officially accepting entries, and the submissions that have already come in are pretty mind-blowing.
There are three categories to which photographers can submit their work: nature, cities, and people.
The grand-prize winner will be named the 2016 National Geographic Travel Photographer of the Year and get a seven-day Polar Bear Safari for two at Churchill Wild — Seal River Heritage Lodge in Manitoba, Canada. Airfare is included.
Below, see 15 submissions to the "cities" category. The contest ends May 27.
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Golden Gate Bridge, Fort Winfield Scott, California.
![](http://static2.businessinsider.com/image/572a50cd9105844d018c0bbf-400-300/golden-gate-bridge-fort-winfield-scott-california.jpg)
Lombard Street, San Francisco, California.
![](http://static2.businessinsider.com/image/572a50ce910584155c8c0a2d-400-300/lombard-street-san-francisco-california.jpg)
Eiffel Tower, Paris, Ile-de-France, France.
![](http://static3.businessinsider.com/image/572a50cf9105844e018c0d3d-400-300/eiffel-tower-paris-ile-de-france-france.jpg)
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