City Tour

The first modern guidebook appeared in 1832 in Koblenz — Karl Baedeker wrote a Rhine travel guide for English tourists. Until then, travelers had hired a human cicerone; Baedeker's books replaced the man with the page — and made mass tourism possible in the first place.

Walk the route of a guided tour once, then come back alone. The tour gives you the knowledge, the second visit the feeling — most corners of a city only read right the second time around.