In 1917, the Hell Gate Bridge, a railroad bridge, was built across both islands, running from Queens to the Bronx. The bridge was first thought of in the early 1900s, as a plan to link New York and the Pennsylvania Railroad with New England and the New Haven Railroad. The bridge is considered to be extremely sturdy; it would be the last New York City bridge to collapse if humans disappeared, taking at least a millennium to do so, according to the February 2005 issue of "Discover" magazine, while most other bridges would fall in about 300 years.