My article on John Adams and Peter Sellars's Doctor Atomic begins with a description of Trinity, the site of the first atomic explosion, which is also the setting for all but the first two scenes of Adams's opera. I visited Trinity on August 1st, and was given an expert tour by Jim Eckles, the affable public-relations officer for the White Sands Missile Range. Unless you provide some special reason to visit, the site is open to the public only twice a year. As it happens, the next Trinity Open House is this Saturday, the same day as the Atomic premiere. There's still time to arrange a live feed of the opera in the middle of the desert. The photograph above shows the site from a couple of miles away. The central blast circle, which can still be perceived because of a change in vegetation, is above and to the left of the apparent end of the road, which goes off to the right.