In New Zealand -- about 120 miles south of Auckland -- are the Waitomo caves. In these caves live so many glowworms that visitors feel more like they're looking up at a night sky than the insides of a cave.
The caves have been around for millions of years, and the starry night vibe is there thanks to the Arachnocampa luminosa, a glowworm species only found in New Zealand, GrindTV reported.
"In their larval stage, these glowworms go fishing with long silk threads called “snares,” creating sticky candelabras, according to the news outlet. "These drippy traps reflect and diffuse the glowworm’s native light, enhancing the starry-night effect for cave-bound sky gazers."