One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A memorial to Chinese freedom in the city where American freedom was born.

Malcolm X's house during his most formative years faces an uncertain future.

The world's largest piece of copyrighted artwork.

This funeral home had the honor, if that is the correct word, of hosting the funeral of the famous Sacco and Vanzetti.

This apartment building designed by a notable Washington D.C. architect housed the Qing Dynasty's Legation.

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

Ancient human, animal, and geometric figures drawn in the earth.