Some places never stop working. Clocks turn, ships load, tourists lean over walls, canals reflect the same lights night after night. We arrive, look, and leave. The places themselves keep going.

These five images, chosen at random, all show systems that outlast any single visitor.

The Clock That Has Outlived Its Makers

The calendar dial of Prague’s astronomical clock is a machine that still believes in the old order of the sky. Golden medallions, zodiac signs, and painted saints circle a central tower that has watched the same square for centuries. An angel holds a sword. A chronicler holds a book. Neither seems in a hurry.