Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Quite simply the largest tree in the world (by volume).

A huge musical instrument played by the ocean.

A snapshot of the city's fascinating voodoo culture.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A massive sea stack famous for its appearance in The Goonies.

The most famous location in China was home to whole dynasties worth of imperial rulers.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A fitting attraction for the corn capital of the world.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Breathtaking and huge 430 year old maps of Italy.

The site of Paul Revere's historic two lantern warning.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A marvel of Byzantine engineering under the streets of Istanbul.

See massive fossils that are over 200 million years old in northeastern Arizona.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The second oldest continuously operating bar in Louisiana.

The final resting place of New Orleans' most famous voodoo priestess.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.