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Weird Places: Socotra

The Socotra archipelago in the Arabian Sea supports so many diverse and unique species that it has been described as the most alien place on Earth.

Diving in a Sacred Maya Cave

Altar, worship house and sacred sundial—to ancient Maya, natural wells called cenotes were all these and more. Diving in a cenote near Chichén Itzá, photographer Paul Nicklen snaps pictures of National Geographic Emerging Explorer and underwater archaeologist Guillermo de Anda as he explores an otherworld strewn with Maya offerings, from pottery to human bones.

NYC Basic Tips and Etiquette (26 pictures)

In NYC Basic Tips and Etiquette, Nathan Pyle reveals the secrets and unwritten rules for living in and visiting New York including the answers to such burning questions as, how do I hail a cab? What is a bodega? Which way is Uptown? Why are there so many doors in the sidewalk? How do I walk on an escalator? Do we need be touching right now? Where should I inhale or exhale while passing sidewalk garbage? How long should I honk my horn? If New York were a game show, how would I win? What happens when I stand in the bike lane? Who should get the empty subway seats? How do I stay safe during a trash tornado?