Spend the day at the religious sites and end it at the Asahi altar, on the 22nd floor of the golden-tinged Asahi Super Dry Building. The venue itself isn't noteworthy, but the views over Sumida-gawa are spectacular, especially at sunset.
At ground level you can alternatively opt for drinks either in the La Flamme d'Or, a beer hall inside the black building with the golden blob on the top, or at the Asahi craft-beer subsidiary Tokyo Sumidagawa Brewing, set back from the river.