DOWNTOWN HOUSTON IS NOW DOWN TO A SINGLE STREET-LEVEL SUBWAY With the shuttering last week of the Subway sandwich shop at the corner of Milam and Rusk streets — catty corner from Pennzoil Place, in the ground-floor space below the Level Office at 720 Rusk St. (pictured here) — the national sandwich chain is now down to a single Downtown location that can be accessed from a sidewalk. Another streetside Subway, in the ground floor of the Americana Building 5 blocks to the south at the corner of Milam and Dallas, exited its space before demolition began on that structure in February. A total of 8 Subways are located Downtown, but they’re all now harbored in tunnels or lobbies or food courts — except the lone fresh-air holdout at 405 Main St., at the corner of Preston. [Previously on Swamplot] Photo of former Subway space at 802 Milam St.: cmoney_htx