World's Most Expensive Stained Glass Window (Washington, DC)

The Washington National Cathedral, is a cathedral of the Episcopal Church located in Washington, D.C.. Of neogothic design, it is the sixth largest cathedral in the world, the second largest in the United States. There are many works of art including over two hundred stained glass windows, the most familiar of which may be the Space Window, honoring man's landing on the Moon, which includes a fragment of lunar rock at its center donated by Apollo 11 Astronaut Michael Collins.

The cathedral is filled with memorials to persons or events of national significance: statues of Washington and Lincoln, state seals embedded in the mosaic floor of the narthex, state flags that hang along the nave, stained glass commemorating events like the Lewis and Clark expedition and the raising of the American flag at Iwo Jima.

World Map Stained Glass Dome (Mapparium Building - Boston, MA)

Located in the Christian Science Center in Boston, The Mapparium is a spherical stained glass room that depicts as a map of the world with political borders from 1935. The hard spherical surface of the globe reflects sound and produces striking acoustical effects. It forms a remarkable whispering gallery so that visitors standing at corresponding locations near opposite ends the bridge can speak to each other and be heard as if they were standing next to each other. The Mapparium was designed to allow the countries of the world to be viewed in accurate geographical relationship to each other. It is usually assumed that a globe solves this problem; but since it is viewed from the outside, different parts of the globe are at different distances from the eye and are thus distorted by perspective. 

Sainte Chapelle Stained Glass (France)

La Sainte-Chapelle is a Gothic chapel on the Ile de la Cite in the heart of Paris, France. The most visually beautiful aspects of the chapel, considered the best of their type in the world, are its 6,458 square feet of stained glass windows of the upper chapel, surrounded by delicate painted stonework. The windows are in deep reds and blues and illustrate 1,130 figures from the Bible. The rose windows were added to the upper chapel in the 15th century.

World's Largest US stained glass Flag

It had to be somewhere--the world's largest stained-glass flag--so it's here on the south wall of the Dole Institute of Politics on the west campus of the University of Kansas in Lawrence.

It's 40 feet high, it has 960 pieces and, it weighs one ton (not that it's likely to be moved anytime soon) and it costs $200,000. Flanking the flag are steel columns recovered from the World Trade Center.