This tribute to the founding father of the American dictionary originally contained a spelling error.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

The nearly 200-year-old building displays a perplexing grammatical error.

A geothermal energy project gone wrong is fracturing the city's picturesque architecture.

A measuring mishap led to these artificial stone ladies losing their stomachs.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

One man's ambition created this psychedelic log home.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A short hike into the mountainside forest reveals a decaying 1890s town.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The remains of a deserted 1800s farming community can be found in Little River State Park.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

The location of Puerto Rico's first water bottling plant, thanks to a collaboration between Mother Nature and technology.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

The remnants of an early American attempt at missile defense.

An abandoned relic of the city's failed experiment with below ground transit.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

A crumbling hospital from the 1850s on Roosevelt Island.