Gateway Arch National Park Trivia
0Loading crowd target
0Loading crowd target
6correct to beat the crowd
36 free Gateway Arch National Park trivia questions with answers — geography quiz, new questions added Sep 2026.
This Gateway Arch National Park trivia quiz covers the smallest national park in the United States and the tallest monument in the country: the 630-foot stainless-steel arch on the St. Louis riverfront. Questions cover Eero Saarinen's 1947 design and the champagne mix-up with his father, the engineering (142 steel sections, 18 inches of sway, the fire hoses used to fit the keystone), the tram that is half Ferris wheel and half elevator, and the stunts, protests and pilots that have made headlines beneath it. History ranges from Luther Ely Smith's 1933 idea and a rigged bond election through the demolition of 40 downtown blocks, the 1965 topping-out, the 1968 dedication, the CityArchRiver renovation and the controversial 2018 act that turned the Jefferson National Expansion Memorial into a national park. The Old Courthouse, where Dred Scott sued for his freedom and Virginia Minor sued to vote, gets its due, as do the Louisiana Purchase, Three Flags Day and the Eads Bridge next door. Questions run from easy to expert with the difficulty shown on each one. Every answer was checked against a reference page and each question carries its citation. If you enjoy this one, try our St. Louis and US National Parks quizzes next.
30 of 36 questions with answers and explanations. Play the quiz
Q 01Gateway Arch National Park lines the bank of which river?
The Mississippi
The Mississippi made St. Louis the gateway to the West, so the memorial was placed on its west bank, on the stretch of riverfront where the city itself began.
Q 02What distinction does Gateway Arch National Park hold among US national parks?
It is the smallest
It is the smallest, so small that in 2017 the Interior Department told Congress the site was too small to be called a national park and asked for 'national monument' instead.
Q 03How tall is the Gateway Arch?
630 feet
630 feet is taller than the design that won the competition: its architect raised the arch as his plans evolved. The gap between its legs at ground level is the same 630 feet.
Q 04Which Finnish-American architect designed the Gateway Arch?
Eero Saarinen
Eero Saarinen never saw his arch rise: he won the design competition in 1948 but died in 1961, more than a year before the first section was set in place.
Q 05What mix-up occurred when the Gateway Arch's designer was named a 1947 competition finalist?
The telegram went to his father
The telegram went to his father, a celebrated architect who had entered the same contest separately. The family firm toasted the wrong man before the organisers corrected the mistake.
Q 06What was Gateway Arch National Park called from 1935 until 2018?
Jefferson National Expansion Memorial
Jefferson National Expansion Memorial honoured the president behind the Louisiana Purchase, but officials argued the name told visitors neither where the park was nor that the arch was its centrepiece.
Q 07Which book-series hero fights a Chimera atop the Gateway Arch, then leaps into the river below?
Percy Jackson
Percy Jackson is cornered by the monster and its mother, Echidna, on the observation deck in The Lightning Thief. He escapes by jumping from the top, a fall only a son of the sea god could survive.
Q 08Which president created the memorial that became Gateway Arch National Park, partly to provide Depression-era jobs?
Franklin D. Roosevelt
Franklin D. Roosevelt signed the executive order in December 1935, steering New Deal money to the city to clear dozens of blocks of decaying riverfront, though the arch itself did not rise for three decades.
Q 09What later emerged about the 1935 St. Louis bond election that funded the Gateway Arch site?
It was rigged
It was rigged: the measure passed by a suspiciously lopsided margin, fraud was exposed soon afterwards, and the true level of support is unknown. Court challenges failed, so the old riverfront was bought and cleared anyway.
Q 10What kind of building was spared when the Gateway Arch grounds were cleared?
A church
A church: the Old Cathedral was judged too historic to demolish, so it still stands beside the arch while the dozens of blocks of warehouses and shops around it were levelled.
Q 11How were the Gateway Arch's upper sections hoisted into place?
Cranes that climbed the legs
By cranes that climbed the legs: each creeper derrick rode a track bolted to the arch itself, crawling higher as it stacked the sections. Afterwards they crept back down, and the track holes were filled and polished.
Q 12How did workers get the Gateway Arch's final section to fit?
Hosed one leg with water
They hosed one leg with water because the morning sun was expanding the metal and closing the gap at the top. City firefighters kept the spray going while the last piece was eased in, half an hour ahead of schedule.
Q 13What was welded inside the Gateway Arch's final section before it was set in place?
Q 21How did activists Percy Green and Richard Daly protest hiring bias at the Gateway Arch in 1964?
Climbed one unfinished leg
They climbed one unfinished leg by a work ladder at lunchtime and stayed for four hours, protesting that Black workers were shut out of skilled jobs on a federally funded monument. Both were arrested when they came down.
Q 22Who dedicated the Gateway Arch in 1968?
Hubert Humphrey
Hubert Humphrey, then vice president, spoke indoors: rain washed out the outdoor programme, so the ceremony moved inside the visitor centre.
Q 23How did skydiver Kenneth Swyers die at the Gateway Arch in 1980?
He landed on top, then fell
A time capsule
A time capsule holding sheets of signatures, many gathered in local schools, went up with the last piece. Because it is welded into the structure, it cannot be removed for as long as the arch stands.
Q 14What holds the Gateway Arch up?
Its metal skin
Its metal skin carries the load: the arch has no internal frame at all, only an inner and an outer wall working together, which left the hollow middle free for the trams.
Q 15How many construction workers died building the Gateway Arch?
Zero
Zero: insurers had predicted 13 deaths on a job that sent welders and riggers hundreds of feet into the air, yet not a single worker was killed building the arch.
Q 16What shape is the cross-section of each leg of the Gateway Arch?
An equilateral triangle
An equilateral triangle: the arch went up as a stack of hollow three-sided sections, each a little narrower than the one below, which is why the legs look so slim by the time they meet at the top.
Q 17The Gateway Arch's tram to the top has been described as half elevator and half what?
Ferris wheel
Half elevator, half Ferris wheel: the tram is a train of small capsules that pivot like fairground cars as they climb the curved legs, so riders stay upright all the way to the top.
Q 18Which stunt have pilots pulled at the Gateway Arch?
Flying through
Flying through its legs was banned by federal aviation officials before the arch was even finished, yet the first plane slipped through in June 1966 and others have followed since.
Q 19Who may climb the stairs inside the Gateway Arch?
Staff and rescuers
Staff and rescuers only: the 1,076 steps in each leg exist for maintenance and emergencies, so every visitor who reaches the top gets there by tram.
Q 20When federal money ran short, who paid to build the tram inside the Gateway Arch?
A regional transport agency
A regional transport agency, Bi-State Development, sold bonds to build the tram when the Park Service could not afford one, then repaid them out of fares that started at a dollar a ride.
He landed on top, then fell: Swyers, 33, parachuted onto the peak of the arch one November morning but plunged to his death before his second parachute could save him.
Q 24The Old Courthouse in Gateway Arch National Park hosted the first trials of which landmark case?
Dred Scott's freedom suit
Dred Scott's freedom suit was filed here in 1846 with his wife, Harriet, and tried twice in the building. In 1857 the Supreme Court ruled against the couple, holding that they were not citizens and so could not sue at all.
Q 25Which suffragist's lawsuit over being refused a vote in 1872 began at the Old Courthouse in St. Louis?
Virginia Minor
Virginia Minor sued registrar Reese Happersett for refusing to register her in 1872; the case began in the Old Courthouse, and in 1875 the Supreme Court ruled in Minor v. Happersett that the Constitution conferred no right to vote.
Q 26What material frames the Civil War-era dome of the Old Courthouse in St. Louis?
Cast iron
Cast iron and wrought iron form a lightweight skeleton that its designer, William Rumbold, patented. The new dome replaced a smaller one during the Civil War and made the courthouse the tallest building in the state for three decades.
Q 27The Civil Courts Building, west of the Old Courthouse in St. Louis, is crowned with a replica of what?
The Mausoleum of Mausolus
The Mausoleum of Mausolus at Halicarnassus, one of the Seven Wonders of the Ancient World, was the model for the columns and stepped pyramid on top. In place of the original's chariot, the 1930 building has two sphinx-like figures.
Q 28Which fort, a hastily built stone tower, held off the British-led attack on Spanish-ruled St. Louis in 1780?
Fort San Carlos
Fort San Carlos was a lone stone tower that the Spanish lieutenant-governor, Fernando de Leyba, had thrown up weeks before the attack. His outnumbered defenders held it, though villagers caught in the fields outside were killed or captured.
Q 29For decades, what cut the Gateway Arch grounds off from downtown St. Louis?
A sunken interstate
A sunken interstate ran between the arch and the Old Courthouse until a landscaped lid, the Park over the Highway, was built across it. The lid was the first piece of a $380 million renovation of the grounds.
Q 30The Eads Bridge just north of the arch grounds, finished in 1874, pioneered the large-scale use of what?
Structural steel
The Eads Bridge was the first large bridge built with structural steel, in chrome-steel tubular arches; its caissons sank foundations over 100 feet down, and its 520-foot centre span was the world's longest rigid span at the time.