One of the most visited places in the world, Rome attracts millions of tourists each year to walk its storied streets and see famous sites like the Colosseum, St. Peter's Basilica, and the Trevi Fountain. Yet this ancient city's allure is due as much...

Russia first encountered Alaska in 1741 as part of the most ambitious and expensive expedition of the entire eighteenth century. For centuries since, cartographers have struggled to define and develop the enormous region comprising northeastern Asia,...