Mayor Eric Adams wants to landmark a pair of Big Apple Christopher Columbus statues — to protect them from mayoral front-runner and Columbus-hater Zohran Mamdani . Adams, who will leave office at the end of the year after dropping his re-election bid, said Tuesday he wants to slap historic designation status on the Italian explorer’s monuments at Columbus Circle and Astoria’s Columbus Square — to keep Mamdani from toppling the statues if he takes City Hall. “The beauty of New York City is that