8 Caves Every Adventure-Seeking Traveler Should Visit
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4. Shell Grotto, England
Visit Kent
Margate’s Shell Grotto is something of an enigma. Decked floor-to-ceiling in shell mosaic, no one is sure when or why it was first created, only that it was discovered in 1835 and opened to tourists a few years later. There are plenty of fascinating theories to satisfy your inner Sherlock while you marvel at the ornate passageways.
