This massive neon wheel is the only one of its kind to be built over a bridge.

A progressive LGBTQ hub offers dancing, HIV testing, art, and more.

One thousand trees were planted in Norway to be used to print books a century from now.

The world's longest tunnel with an undersea section.

This 400-year-old sweet shop serves a delicacy some have described as "edible incense."

Hidden by the roadside in the Iya Valley, this gem brings together folk monsters and the region's unique geography.

Dedicated to the armor and weapons used by the legendary Japanese warriors.

Closed for decades, this strange symbol of Japan's Expo '70 has finally opened its psychedelic insides to the public.

Crawl through the hole in the middle of this stone to break off a bad relationship or initiate a good one.

Shrine to Japanese water-goblins, complete with their preserved body parts.

The quintessential Japanese rock garden has existed for more than 500 years.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

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

A beautiful geyser under environmental threat.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

The notorious Wild West outlaw was raised in this unassuming abode.

A Mars simulation in the southern Utah desert.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

What's a diner from the 1939 World's Fair doing in a remote Utah mountain town?

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Traditional Danish spot where the schnapps are flowing and the smørrebrød is loaded.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.