Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.

A controversial blue hoop has been puzzling freeway drivers since 2013.

An acoustic anomaly with a mysterious cause.

This magnificent church allows travelers along one of Germany's busiest roadways a chance to rest and reflect.

This isolated island is often capped by its own fluffy cloud.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This striking icon of the disputed Republic of Artsakh caused a stir at a Eurovision Song Contest.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Where pardoned turkeys once spent their all-too-brief final days.

A sobering museum dedicated to landmines and the personnel working to remove them from Afghanistan.

Three abandoned missile silos are hiding in plain sight behind a suburban development in Maryland.

This Seattle joint serves food inside an old train car once used by FDR.

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

With over 12,000 different species of plants, this botanical garden is Japan's oldest and most diverse.

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

Huge spherical rocks in the middle of the prairie.

A clone of a cloned tree that was so important it allegedly had its own guards.

The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

The half-mile long structure is so impressive, it even shows up on satellite images.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

Over 1.3 million confiscated wildlife products fill this macabre menagerie of illegal animal specimens.

Every winter, the wind carves blocks of frozen water into beautiful abstract shapes inside this unusually curved tunnel.