What a gorgeous photo by Rick of the famous arch
which will be 50 years old next year. there is an interesting wiki at
https://en.wikipedia.org/wiki/Gateway_Arch
It even has as an observation deck
"Near the top of the Arch, passengers exit the tram compartment and climb a slight

grade to enter the observation area. This arched deck, 65 feet (20 m) long and 7 feet (2.1 m) wide, can hold about 160 people, four trams' worth.[68] Sixteen windows per side, each measuring 7 by 27 inches (180 mm × 690 mm), offer views up to 30 miles (48 km). to the east across the Mississippi River and southern Illinois with its prominent Mississippian culture mounds at Cahokia Mounds, and to the west over the city of St. Louis and St. Louis County beyond." needed]

The windows of the observation deck are located around the apex of the arch.
__________________
"Sir" John Fowles Bt
Honorary Curator Bootleg Museum
(where Sir does not signify that I am a fully benighted Knight just a Bt which signifies a humble Baronet -?? read the wiki!)
I meant no one no harm
Once inside we found a curious moonbeam
Doing dances on the floor