Sail Baltimore - Happy St. Patrick's Day! Alexander von Humboldt is the only tall ship that we know of that had green sails. Do you know why she had green sails? Photo
![Historic sailing ship "Alexander von Humboldt II" on the Elbe river during 827th Port Anniversary, Hamburg, Germany Stock Photo - Alamy Historic sailing ship "Alexander von Humboldt II" on the Elbe river during 827th Port Anniversary, Hamburg, Germany Stock Photo - Alamy](https://c8.alamy.com/comp/G13CAB/historic-sailing-ship-alexander-von-humboldt-ii-on-the-elbe-river-G13CAB.jpg)
Historic sailing ship "Alexander von Humboldt II" on the Elbe river during 827th Port Anniversary, Hamburg, Germany Stock Photo - Alamy
![The barque Alexander Von Humboldt II, one of the ships passing by in Charleston Harbor at Tall Ships Charleston, a festival that included the parade of classic sailing ships, a wooden boat The barque Alexander Von Humboldt II, one of the ships passing by in Charleston Harbor at Tall Ships Charleston, a festival that included the parade of classic sailing ships, a wooden boat](http://tile.loc.gov/image-services/iiif/service:pnp:highsm:43300:43305/full/pct:50/0/default.jpg)