Ten World Engineering Marvels-- Part 3: The Chunnel, Railroad and Liberty

6.  CHANNEL TUNNEL

Opened in 1994 after six years of construction connecting Great Britain with the rest of Europe.  Known as the "Chunnel"  Thirty-one miles long.  Since they built it from both ends don't you know they were kind of hoping they'd come together at the same spot.

7.  TRANSCONTINENTAL RAILROAD

Work on it began even as the Civil War was being fought.  Went eastward from Sacramento, California and west from Omaha, Nebraska.  Completed with the Golden Spike in 1869.

Cross-country travel in the United States  was cut from months to under a week.

8.  STATUE OF LIBERTY

A symbol of friendship between France and the United States.  It was dedicated in New York Harbor in 1886.

--CootTun

Secret Alcatraz Tunnel Found in 2014

From the Feb. 28, 2014, Yahoo! News "Under the Rock: Alcatraz's secret tunnel discovered" by Mike Krumboltz.

Researchers from Texas A&M, using ground penetrating radar discovered a network of tunnels under the island in San Francisco Bay.

These tunnels date from the 1800s when there was a fort on the island (before it became a prison). They also found a building that was used for a magazine for the powder and shells.

Alcatraz became an infamous federal prison and shut down in 1963 over fears of the Bay Area weather impacting on the walls and the escape of three prisoners.

Wouldn't It have Been Something Had Those Tunnels Been Made By Escaping Prisoners.  --Cooter