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

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

The former headquarters of Mexico's Secretariat of Public Education now houses a muralism museum, including Diego Rivera's first large-scale mural project.

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

The winter home of millions of migrating monarch butterflies.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

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

These winged Maya figures are the subject of speculation and conspiracies.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This steamer is known as "The ship that built Cleveland."

An abandoned, rusty old relic of railroad history stands at attention over the Cuyahoga River.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The playful side of the Columbus community is on full display.

Just outside the Ohio Supreme Court sits a testament to justice.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

This "floating railway" is one of the world's oldest monorail systems.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

The last bastion of Roman presence north of the Alps looms over a German town.

This German fountain of a legendary apple wine-loving drink thief will spit on you.

Fantastic views and thousands of love locks.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

Carved fountains poignantly placed in parks and in front of special monuments.