A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This rustic old building is said to be the most photographed barn in America.

This town is home to the world’s largest arch constructed entirely of elk antlers.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

Home to Hollywood history and a very special salt crystal.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

An ancient Egyptian temple sits within a modern European museum.

The bridges portrayed on EU currency aren't fictional anymore.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

A Netherlands hotel where you can sleep inside a wine barrel.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.

This museum is filled with an eclectic collection of unique inventions.

A massive stone fox oversees a Rotterdam elementary school crosswalk.

A nearly 25-foot concrete sculpture of Sylvette, Picasso's muse.

An enormous Polaroid picture adds an artistic flair to Rotterdam.

The world's largest collection of ships in bottles.

An ingenious Dutch land art project uses grass ridges to cut airport noise pollution in half.

Made of 41,900 pieces of mosaic, it took two years to piece together this giant egg.

A giant floating rubber duck-bunny painted with a different design every year.