The Arch, City Museum, and the Climatron
The Gateway Arch is as wide as it is tall, with a free museum below and a paid tram to the top. The Old Courthouse across the green reopened in 2025 after a major renovation, adding new galleries around restored courtrooms where Dred and Harriet Scott and Virginia Minor brought landmark cases.City Museum fills a former shoe-company building with tunnels, slides, bridges, salvaged objects, and weather-dependent rooftop attractions. Soldiers Memorial Military Museum brings free military-history galleries inside a restored 1938 Art Deco monument. Saint Louis Art Museum keeps the 1904 World's Fair's only permanent palace in public use with free general admission.The Pulitzer Arts Foundation is free and small enough to pay close attention to Tadao Ando's concrete rooms, reflecting pool, and rotating exhibitions. Missouri Botanical Garden adds the Climatron, a column-free geodesic rainforest conservatory opened in 1960. Admission, tram tickets, rooftop access, special exhibitions, parking, and seasonal programs are separate from the PopHops Pass.