Guided visits to Britain's sights—museums, cathedrals, castles, palaces, ruins—can help make them come alive, deepen your understanding, and enrich your experience
Harrods of London installed a novelty in 1898: the world's first true escalator (to be fair, an inclined moving belt with metal bars for traction did make its debut two years earlier on Coney Island). The oddness of a moving staircase so unnerved many shoppers that employees were stationed near it with smelling salts and cognac to help revive those overcome with fear.