Uninhabited islet in the Caribbean is the sanctuary of giant lizards.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.

This century old flensing port is a remnant of a culture for whom whaling is still legal.

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

This former sugarcane transport tunnel is now a portal to a lovely beach.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Cavernous opening completely encased in Karst limestone.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

One of the most accessible undersea plane wrecks in the world.

One man's love of sea life and art has turned his home into a temple of outsider island art.

This isthmus in the Bahamas narrowly separates the roiling Atlantic from the cool Bight of Eleuthera.

They squeal, they nosh, they look like predators.

One of the deepest blue holes in the world.

In paradise, feral pigs have claimed an island all to themselves.

A macabre sculpture museum in the capital of Haiti fuses human bones with broken metal to create challenging contemporary art.

The royal seat of Henri Christophe, a formerly enslaved man who became Haiti's only king.

Thousands of Haitians travel to the waterfalls to ask the Virgin Mary of Mount Carmel and her voodoo counterpart Erzulie for healing in a yearly pilgrimage.

A stone circle on the slopes of a Caribbean volcano commemorates the leader of an anti-slavery uprising.