Space and time -- Ideas of the ancients -- Made to measure -- Exploring the globe -- Putting the Earth in perspective -- Measuring time -- Like clockwork -- Biotime -- Biospace -- Timescales of history -- The shapes of space and time -- Putting the Universe in order -- The ultimate law of nature -- The ultimate speed limit -- The marriage of space and time -- Special theory, proofs and tests -- The philosophy of time -- Beyond common sense -- Getting a grip on spacetime -- General theory, proofs and tests -- Black holes and beyond -- Across the Universe -- Across the universes -- God's dice -- Ultimate length -- Ultimate time -- Strings and things -- The birth of space and time -- How to build a time machine.