Join a fellow traveler on a walkabout through Paris and London, and then travel with him across England, Scotland and Wales. After those walkabouts, accompany h

How can we think more deeply about our travels? This was the question that inspired Emily Thomas' journey into the philosophy of travel. Part philosophical ramb

The New York Times bestselling author of The Geography of Bliss embarks on a rollicking intellectual journey, following in the footsteps of history’s greatest

Time travel is metaphysically possible. Nikk Effingham contends that arguments for the impossibility of time travel are not sound. Focusing mainly on the Grandf

Ryan Wasserman explores a range of fascinating puzzles raised by the possibility of time travel, with entertaining examples from physics, science fiction, and p