A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A series of five defunct panopticon prisons in Cuba.

Once a year in Pomuch, the dead are taken out for a cleaning.

A hacienda that features all things uniquely Yucatán.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

These azure waters were thought to lead to the Mayan Underworld.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

The Canaima airstrip in Venezuela keeps an antique DC 3 plane in its camp.

Dr. Farid Mattar's Monument of Peace.

The world's tallest slum.

Ruins of the laboratory where a mysterious doctor invented an embalming fluid and stored his mummies.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

The biggest museum dedicated to insects in North America, one of the largest in the world.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

An abandoned movie set in the desert of West Texas.

The winter home of millions of migrating monarch butterflies.

A wild Hollywood resort thwarted by mosquitoes.