Where in the World Wednesday: Waitomo Caves, New Zealand

.WAITOMO CAVES, NEW ZEALAND

Eerie blue “stars” light up a cave known as the Glowworm Grotto along the Waitomo River on New Zealand’s North Island. A tourist attraction since the 1880s, the grotto and other caves remain a source of wonderment for visitors. The otherworldly glow comes from larval fungus gnats found only in parts of New Zealand and Australia.