Photograph by Jeff Morales

The White House (1600 Pennsylvania Avenue N.W.; phone: +1 202 456 2200)

John Adams and every President since lived in the Executive Mansion. The White House was rebuilt after being burned by the British in 1814, and several Presidents played significant roles in its modernization during the 19th-century. Central heating was introduced by President Van Buren. James Polk introduced gas lighting. Andrew Johnson installed plumbing for running water. Rutherford Hayes brought in a typewriter and the most advanced telephone of the time. The first elevator was put in place by James Garfield. And Benjamin Harrison was responsible for the first electric lighting in the building. Throughout our history, the White House has demonstrated to the nation how science and engineering can improve living conditions.