Gateway to SC25: The St. Louis Arch

A Gateway to What Comes Next

When you think of St. Louis, the Gateway Arch probably comes to mind. That massive silver curve is impossible to miss. It rises into the sky and loops back down like a perfect steel rainbow, gleaming in the sun. But it’s more than just a photo opportunity. For everyone heading to SC25, the Arch feels like a symbol of what we’re all gathering to do: think big, take risks, and build the future.

A few quick facts to get you grounded: the Arch is 630 feet tall and just as wide. It’s taller than the Washington Monument and nearly as tall as the Space Needle. Its stainless steel skin gives it that sleek, almost futuristic look. But what really stands out isn’t how it looks — it’s how it was built.

Back in the 1960s, constructing the Arch was a major engineering challenge. The shape is called a catenary curve, like the curve a hanging chain makes. That’s elegant in theory, but making it out of steel, and getting both legs to meet precisely at the top, was a huge risk. The legs were built separately, rising from the ground and curving inward. On October 28, 1965, the final piece — the keystone — was slid into place. The margin for error? Just 1/64 of an inch. Water had to be flowed over the steel legs due to thermal expansion to help each leg meet, but it worked! And the Arch has stood strong ever since.

If you get the chance, take the tram ride to the top. It’s a strange little capsule that climbs through the inside of the Arch. The cars rotate as they move so you always feel upright. It’s part elevator, part Ferris wheel, and totally unique. Once you reach the top, you’re treated to a view that stretches across the Mississippi River and all of downtown St. Louis. It’s a moment that makes you pause.

The Arch can sway up to 18 inches in strong winds. It weighs over 17,000 tons and contains enough stainless steel to build dozens of aircraft. The tram system had to be invented specifically for its shape. It’s a marvel of design and engineering, but its real impact is emotional. When you stand at the base and look up, it’s impossible not to feel inspired.

The Spirit of Exploration

So what does the Arch have to do with SC25? A lot. It represents vision, determination, and a willingness to challenge the status quo. It’s proof that ambitious ideas can become reality when people commit to making them happen. That’s exactly what SC25 is about: collaboration, innovation, and exploring the edge of what’s possible.

The Arch was built to honor the spirit of exploration. It marks the starting point of Lewis and Clark’s journey and commemorates the Louisiana Purchase. St. Louis was once the gateway to the West, and the Arch is a powerful reminder of the bold decisions that shaped the country.

It’s also a reminder of the future. In recent years, the area around the Arch has been transformed. There’s a modern museum, beautiful parkland, and a new entrance that connects directly to the city. It’s a living, breathing space where people come together — just like SC25.

Visiting the Arch

The Gateway Arch is part of the Gateway National Park.

If you’re coming to St. Louis for SC25, make time for the Arch. Ride to the top, walk the grounds, and visit the museum. You’ll be standing in the footsteps of pioneers — and you might just find the spark for your next big idea.

Where: 15-minute walk from the America’s Center

When: Any day of the week, year-round

• Tram Rides: 9 am–4:30 pm (starting at $15/person)
• Museum: 9 am–6 pm (free for all)
• Gateway Grounds: 5 am–11 pm (free for all)

The Gateway Arch