The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

The winter home of millions of migrating monarch butterflies.

The "Seinfeld" diner.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

One of only two commuter aerial tramways in the United States.

More gold than anywhere else, ever.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.