Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

All that's left of the quintessential "cabin in the woods."

A gargantuan crystal kingdom.

A floating cat sanctuary on an Amsterdam canal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

An Aztec snake god has taken the material form of an apartment complex.

The largest earthwork effigy in the world.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

An abandoned castle owned and ignored by Masons carries a cursed history.

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

A speakeasy takes on Chicago's drinking culture.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

One person's lost luggage is another person's treasure.

The longest hedge maze in the world.

360° views of the city plus five floors of optical illusions and hands-on science.