As a tourist attraction, the Brooklyn Bridge is a popular site for clusters of love locks, wherein a couple inscribes a date and their initials onto a lock, attach it to the bridge, and throw the key into the water as a sign of their love. The practice is officially illegal in New York City and the NYPD can give violators a $100 fine. NYCDOT workers periodically remove the love locks from the bridge at a cost of $100,000 per year.