I used to live in an area in Seoul sandwiched between universities (신촌), in a nice enough high-rise apartment building at a main street, with a block full of love hotels behind it. My window was out back, facing hotel back entrances.

It was generally quiet and uneventful, but super amusing on Valentine's Day nights: The entire street would basically be a column of taxis. They'd briefly be stopping, a couple would dash out to the safety of the hotel entrance, the column would advance, repeat.