25 miles south of Tucson sits the only Cold War missile silo you can actually walk into

It’s the only one left

About 25 miles south of Tucson, just off Interstate 19 in Sahuarita, Ariz., a 103-foot nuclear missile still stands upright in its underground silo.

The Titan Missile Museum is the only place in the country where you can walk into a fully preserved Cold War missile complex and see the real thing.

Since 1986, more than 1.5 million people have made the trip.

The missile has no fuel and no warhead, but everything else down there looks exactly the way it did when the site was on active alert.

One of 54 sites, and the sole survivor

The U.S. built 54 Titan II missile complexes starting in 1963, spreading them across Arizona, Arkansas and Kansas.

The Titan II was the largest land-based nuclear missile the country ever deployed, and the program ran for more than two decades. When deactivation came in the early 1980s, the military demolished all 53 other sites.

This one in Sahuarita survived.

The nonprofit Arizona Aerospace Foundation runs it now, and it earned National Historic Landmark status in April 1994.

Fifty-five metal stairs take you underground

You start the tour by walking down 55 metal grate stairs into the complex.

Once you’re below ground, the layout splits into two main sections: a three-level Launch Control Center and an eight-level missile silo.

Long tunnels called cableways connect them, carrying all the wiring between sections. Blast doors weighing about three tons each seal the areas off from one another and from the surface.

In some sections, the steel-reinforced concrete walls run up to eight feet thick.

The missile still stands 103 feet tall

The Titan II in the silo is actually a training variant, not the original operational missile, which is why you can spot Air Force markings on its side.

A dummy reentry vehicle sits on top with a hole cut into it, proof that no warhead is inside. You can look straight up at the full length of it from the viewing area.

Above, the silo doors stay permanently blocked from opening more than halfway, a condition required by a U.S.-USSR arms agreement.

Turn the launch keys in the original control room

The control room still has its original equipment: banks of switches, rotary dial phones and Cold War-era mainframe computers. You get to experience a simulated launch sequence at the actual console.

The launch keys were kept in a red metal file cabinet with two separate locks. The two keyholes sit far enough apart that one person could never turn both at the same time.

That distance was the whole point, a security rule called the “two-man policy” that applied everywhere in the complex.

The whole structure rides on giant steel springs

Every piece of the underground complex hangs on massive steel springs.

The engineers designed them so the facility could ride out the shockwave of a nearby nuclear blast and still launch the missile. You can actually feel this for yourself.

Lean against the outer wall and push, and the floor shifts slightly beneath you. The complex also had its own diesel generator to keep running if the power grid went down.

Everything was built for one purpose: launch under attack.

Crews called their underground home Motel 2

Four crew members worked 24-hour shifts down in the complex. Their living quarters had four bunk beds and a small fitted kitchen, nothing more.

They nicknamed the place “Motel 2.” “No Lone Zone” signs hung throughout the tunnels and rooms, constant reminders that the two-person rule was always in effect.

If the main entrance ever got blocked, an escape hatch connected to a horizontal tunnel and a ladder leading up to the surface.

The daily tour covers the heart of the complex

The standard guided tour runs about 45 minutes and takes up to 26 visitors at a time through the control room, the cableways and the missile viewing area.

You need online reservations for the underground tour because they don’t sell tickets at the door. Book at least 24 hours ahead, especially between October and May when the site is busiest.

Walk-ins won’t get you below ground, so plan before you drive down.

Special tours drop you to the bottom of the silo

If the standard tour isn’t enough, the “Beyond the Blast Doors” tour runs on the first and third Saturday of each month.

It lasts about 90 minutes and takes you into restricted areas, including a descent to the bottom of the silo where you stand directly underneath the missile.

The “Top to Bottom” tour covers all eight levels over five hours with just six people.

“Moonlight MADness” tours happen on Saturday evenings near the full moon, giving you an eerie nighttime look down into the silo.

Look straight down at the missile from the surface

The topside area is self-guided, and you get an audio guide device with your visit. From ground level, you can peer through the partially open silo doors and see the missile standing 146 feet below.

Restored engines, alarm systems, fuel storage equipment and Air Force vehicles line the surface displays. A visitor center has an exhibit gallery and a gift shop.

If you bring a dog, leashed pets can join you on the topside tour, though only service animals go underground.

Hard hats, no backpacks and 55 stairs back up

You need to handle 55 stairs down and back up and stand for about 45 minutes to do the underground tour. If the stairs aren’t possible, you can still see everything on the surface.

Leave strollers, large bags and backpacks in the car. Flash photography, selfie sticks and tripods stay behind too.

If you’re tall, they’ll hand you a hard hat at the entrance, and the low-hanging pipes and doorways down there make it very necessary.

A Cold War relic with no equal in the country

The museum sits just off Interstate 19 at exit 69, an easy stop if you’re driving between Tucson and the border town of Nogales. It’s open daily from October through May, with fewer days during summer.

Fewer than 3,000 places in the entire country hold National Historic Landmark status, and this is one of them. The site’s message is “Peace Through Deterrence.”

No other museum in America has a real nuclear missile still standing in its silo, preserved exactly as it was.

Visit the Titan Missile Museum in Arizona

If you want to see the only preserved Titan II missile complex in the country, head to 1580 W. Duval Mine Road in Sahuarita, Ariz., about 25 miles south of Tucson.

The museum is open daily from October through May and on a reduced schedule from June through September. You’ll need online reservations for the underground tour, but the topside area doesn’t require one.

Check the official website for current hours and ticket prices before you go.

This article was created with AI assistance and human editing.

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