The latest addition to a bustling Sukhumvit Soi 11, Le Derrière serves as a quieter annex to Q Bar, a Bangkok institution for more than a decade. Surprisingly enough, it looks exactly like a typical 1920s French bistro, all recreated in painstaking detail—every piece imported from France. A half-open roof brings a tropical touch. Watch the stars as you sample the extensive Absinthe menu, the main focus here. But beware of hallucinations!