This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

A little-known hot spring haven right below the highway.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

Walk 2,300 feet above the ground on the "Troll's Tongue."

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

Known as "The Hill of the Little Devils."

A Winnebago Tribe collection featuring arrowheads, artwork, and a mysterious rock carving.

The magazine keeps a perfectly groomed display garden for its photo shoots.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

Home with Gothic windows featured in a famous painting.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

This tiny site in Iowa, part of a patchwork national wildlife refuge, is home to ancient flora and fauna.

Hidden in magnificent rolling countryside, see what may be the largest modern stone circle in the world at Wisconsin's very own "Stonehenge”

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

A curious sculpture garden and museum in Cochrane, Wisconsin.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

Every winter, dozens of otherworldly ice structures sprout up from a rigged up artesian well.

Inside this museum resides a boot fit for a giant.

A piece of solitude and tranquility in the heart of East Saint Paul.

Admire the art and then buy a raccoon skull cleaned by flesh-eating beetles.

This taxidermic smorgasbord was co-created by an artist poached from the Museum of Natural History.

This Neolithic passage tomb forms part of a World Heritage Site.