Downtown Boston’s streets are not organized on a grid, but grew in a meandering pattern early in the 17^th century.

This city is home to a mega-project called the Big Dig.

The construction plan was supposed to replace a heavily-used central elevated artery that ran through downtown Boston, and replace it with an underground tunnel. The project was fraught with criminal arrests, escalating costs, death, leaks, and charges of poor execution and use of substandard materials…..whew!

Here we see South Station, where Amtrak, commuter rail and bus service converge.

Now, about the Massachusetts Bay Transportation Authority (MBTA):

The Orange Line is so named because it used to run down Orange Street (now lower Washington Street); the Green Line because it runs adjacent to parts of the Emerald Necklace; the Blue Line because it runs under Boston Harbour; and the Red Line because its northernmost station used to be at Harvard University, whose school colour is crimson, in Cambridge, Massachusetts.