This church devoted to Mexico's "dead saint" is a festive celebration of a formerly hidden religious figure.

This 16th-century church now has a heavenly second life as a cultural hub of Pátzcuaro.

This church, buried halfway in lava rock, is all that remains of a Mexican village destroyed by a volcano.

This historic cemetery built for victims of the epidemics that swept Guadalajara is shrouded in macabre tales.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

Tucked along a river are enigmatic stone carvings created thousands of years ago.

A wild Hollywood resort thwarted by mosquitoes.

This restored opera house is named after a soprano known for tragic romance, exile, and a truly uncomfortable wedding.

This subterranean passage reveals the city's mining history as well as its legendary terrors.

A historic cemetery doubles as a museum containing hundreds of unique tombs sculpted by a single artist.

A series of sculptures depict the actors who starred in the many cowboy movies shot in this Mexican city.

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

Inside this mountain lies several kilometers of breathtaking caves.

One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

The world's oldest family-run magic shop is hidden beneath a bustling London thoroughfare.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

The television series' iconic giant foot was borrowed from this classical painting.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The final resting place to 300 Victorian-era pets hides inside the city park.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.