Under a black light, the chemicals fossilized within shine in brilliant hues of pink, blue and green. Scientists are using these fluorescent features to understand how the caves formed and how life is ...

Tickets for guided tours of the marble cave will go on sale at 10 a.m. on March 31. The cave features stunning stalactites ...

A magical world of blue is lighting up ... no Dokutsu (blue cave) Shibuya,” features about 600,000 blue LEDs along an 800-meter stretch between Shibuya Koen-dori street and rows of zelkova ...