While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

An homage to everyone's favorite prehistoric cartoon family.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

A Saint Nicholas-themed ghost town in the Mojave desert.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

The remnants of a creative early method of wildfire prevention.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

Drink wine handed out through a window as part of an age-old tradition.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The middle finger of modernity.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

A Mysterious Masonic tomb in San Luis Obispo.

The longest continuously operating Elk's Lodge in the country.

A bronze tribute to a legendary Californian, the self-proclaimed "Emperor of the United States."