"Excuse me, sir, would you mind telling me where I might find Platform nine and three quarters?" This is the very King's Cross Station where Harry Potter came to board the train to Hogwarts. The trolley is permanently stuck to the wall.
The London Wall is the fortress the Romans built to keep out invaders. It was buried until the bombings during WWII uncovered the remains.
Stonehenge remains a mystery. How did they move the rocks 250 miles to this spot? Was it the Romans?
Anyone for a BAAAAAWTH? More Roman ingenuity.