Streetrace in the night
Bangkok never sleeps. At night the traffic even increase in some places. If your hotel is in the middle of the city, please bring ear plugs if you are sensitive to sound.
Fortunately it seems that most whistleblowers (directing traffic) go to bet at 10 or so. They can make a bloody hell of noise otherwise.
Nikon D70s, handheld with AF-S DX VR 18-200/3,5-5,6G IF-ED. Lovely lens. Did I mention that I LOVE the VR function? 1/20s shutter speed.