Card No. 48

The answers

1. Since 1904

   Double-decker trams on Hong Kong Island

   Still going

   Hong Kong's trams have run since July 30, 1904. They hold the Guinness record for the largest double-decker tram fleet in service, and an adult ride costs HK$3.30.

2. Since 1918

   Mercurochrome, the red mercury antiseptic, sold in US drugstores

   Done for 1998

   On Oct 19, 1998, the FDA moved it from 'generally recognized as safe' to 'untested,' which ended US sales. A mercury-free product called Mercuroclear trades on the name.

3. Since 1946

   A seagoing paddle steamer

   Still going

   Waverley is the world's last seagoing passenger paddle steamer, and her 2026 season runs until October 18. Preservationists bought her in 1974 for one pound.

4. Since 1881

   A giant sequoia with a tunnel cut through it, in California

   Done for 2017

   The Pioneer Cabin Tree came down in a storm on January 8, 2017. Its tunnel was cut in 1881, and cars drove through it starting in the 1920s.

5. Since 1925

   A country music radio show from Nashville

   Still going

   The Grand Ole Opry still broadcasts on WSM. It turned 100 on November 28, 2025, and is the longest-running weekly radio program in the world.