1 Mint no gum (MNG) â the stamp appears to be unused but has no gum. 2  It might have been used but not cancelled, or have been issued without gum. 3  Unmounted mint (UM) â the stamp is unused and appears never to have been mounted.
The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington. The project has been stalled since December 2013.No firm date for if/when the project will continue has been set.n January 12, 2009, the state of Washington, King County, the city of Seattle, and the Port of Seattle revealed that they had agreed to replace the viaduct with a bored underground tunnel.
The Tallest Bridge in the World [20 pics]. Photograph by Mickbab. Located in Southern France, the Millau Viaduct is the tallest bridge in the world. Constructed in three short years, the bridge is an engineering and architectural marvel. At its highest point, the bridge soars 343 meters (1,125 ft) above ground, thatâs 19 meters (62 ft) taller than the Eiffer Tower! Check out the incredible photographs below along with a timeline of the projectâs major milestones and notable records and figures.