The plans call for the arch to be built on Columbia Island, a man-made strip of land in the Potomac River that is part of Washington, D.C.

The plans call for the arch to be built on Columbia Island, a man-made strip of land in the Potomac River that is part of Washington, D.C.

The Commission of Fine Arts voted to OK President Donald Trump's plan to build a 250-foot "victory arch" at the National Mall in Washington, D.C.