A vibrant colony of rescued wolves and other canids.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

A museum devoted entirely to the rattlesnakes and snake-related art.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

Garments from across the globe call this hidden gem home.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

A journey through a collection of classic cars and fashionable artwork.

This controversial museum includes such detested exhibits as a chocolate suicide bomber and fecal-smelling digestion machine.

Time has stopped at the house where Gandhi died.

Towering at a height of over 30 meters, this turn-of-the-18th-century landmark is the tallest temple in Nepal.

The former stronghold of the Malla Dynasty has remained virtually unchanged since the 17th century.

Named after the Goddess of Harvests, Annapurna is the deadliest member of the Eight-thousanders club.

Civil War Fort on an island in the Boston Harbor.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.