For two frightening years of World War II, Prinsengracht 263 was the secret address of the world’s most famous diarist. Queuing outside, I try to imagine this street as it must have looked 70 years ago. The gabled canal houses are the same, as is the canal flowing by. Bicycles are still a major means of transportation in the Netherlands. These bicycles even look like they could have been in use in the 1940s.