Places StepYoshi Wants to Go

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

A cabinet of curious mathematical models and old calculators.

An artificial crater field that trained astronauts for lunar exploration.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

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

America's only nuclear missile silo open to the public.

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

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

A remote coral island with a gristly history of shipwreck, battles, and a horrendous war crime.

The site of one of Japan's very few American occupations during World War II still holds the relics of a roundly disastrous campaign.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

An auroral research program that superheats the ionosphere.

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.

The king of U.S. high points towers over every other peak on the continent.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The first space rock known to have struck a human.

148 feet long and in the middle of a verdant forest.

Things roll uphill on this Mexican street that seems to defy gravity.