A dangling church built over a Colombian gorge.

An abandoned movie set in the desert of West Texas.

Three hundred years of preserved Spanish colonial history in San Antonio.

The winter home of millions of migrating monarch butterflies.

The topiary maze at the Habsburg hunting lodge.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

Romania's only crater lake with water as pure as if distilled.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

New fungal and bacterial species call this deadly lake home.

This replica of the Greek structure is in the heart of Nashville.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

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

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

The enigmatic and seldom visited ruins of a Mayan city-state.

The stoutest tree in the world.

Volcanically heated hot springs.

Experiencing Guatemala's sensory-exploding church is a blunt reminder of European influence.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

A hand-built folk art installation covered with messages of God's love.