The Boston University bridge is famous because it’s the only place in the world where a boat can sail under a train, driving under a car, driving under a plane.
The first potato grown in the United States was planted in New Hampshire in 1719.
Maine is the only state with one syllable.
The first phone book was published in Connecticut in 1878. It had 1 page and 50 names.
Toilet paper was invented by Joseph C Gayetty in New York in 1857.
The official sport of Maryland is jousting.
Rhode Island is home to the countries oldest school house. The school was built in 1716.
There is a state shell of New Jersey called a Knobbed Whelk.
Vermont has the highest ration of cows to people.
Delaware is the first state to be a state.
Maine has more than 5,000 lakes.
Students at the University of Alabama believe the school to be haunted.
Missouri and Tennessee both border 8 other states.
In 1881, the Arkansas General Assembly resolved that the state was to be spelled “Arkansas” but pronounced “ArkanSAW”.
The Lake Murray monster in Lake Murray in Irmo, South Carolina is half-snake, half-dinosaur.
St. Augustine Florida is special because it’s the oldest continually occupied city in the United States.
Illinois official state snack food is popcorn.
John Dillinger escaped jail by using a pistol he carved out of wood.
In Iowa you will find the world’s largest strawberry in Strawberry Point and it is 15 feet high and 12 feet wide. It is made of fiberglass.
The thing that’s special about the Ohio state flag is it is not a rectangle. It’s called a pennant with a swallow-tail tip.
Caleb's Encyclopedia 
My brain loves your encyclopedia. I hope to see the Lake Murray monster someday.
I believe the Manhattan bridge has car lanes over train lanes. So, I think a boat can sail under a train, driving under a car, driving under a plane there, too. In the San Francisco Bay, I think you could ride a train under a boat under a car under a zeppelin.