In 1889 the Eiffel Tower shot up 984 feet, celebrating the new technology of metal and achieving an effect of lightness that no stone monument could match. In the past 50 years the Washington ...

At the western end of the National Mall, the Washington Monument towers over our country’s capital. The 555-foot obelisk—a four-sided stone pillar with a pyramid-shaped top—was built to ...

Interior Department officials are considering scaling back the boundaries of national monuments in the West to encourage ...