Ever popular here in Hawaii - brought by Chinese in 1800's, the original "Chun Hoon" lychee tree can still be seen at a small shopping center in Honolulu, and, I believe, may still bear fruit.
Fruit has a crisp, red, shell-like "pod" covering that is easy to crack open. Fruit is white, sweet & juicy, with a large, shiny dark-brown seed. Grows in clusters that are easy to harvest, except at the top of the large trees. More than a few broken arms & legs during the season!
Rambutan has also become popular. Similar to lychee exept that its pod is rubbery with long "hairs" that protect it during shipment.