This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

New fungal and bacterial species call this deadly lake home.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

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

A miraculous natural phenomenon known as "the spring that breathes."

A former electrical substation is now home to an eccentric junk art masterpiece.

Free public park and gardens filled with peacocks and peahens.

This failed condo development was reborn as a street art hub.

DIY collection of eclectic holdings.

A poignant memorial shows the widows and children left heartbroken by the worst fishing disaster in Scottish history.

This abandoned orphanage-turned-asylum witnessed a terrible chapter in Québec's history.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

Stained glass windows bathe this botanical garden in cosmic light.

An indigenous take on European design creates a stunning visual overload.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

A museum in the former home of Marxist revolutionary Leon Trotsky.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.