St. Louis, US
Designed by Eero Saarinen, this is the world's tallest national monument, built to be a symbolic gateway to the West. The icon of the city, the Arch is right on the bank of the Mississippi and offers an inspiring sight to travelers coming in from Illinois. There's a gift shop and a confectionery, as
well as a inspiring film called "Monument to the Dream," about the building of the Arch; it is an exceptionally well-made and memorable tribute to how a vision was made tangible. But the main attraction is the Journey to the Top; you'll ride a unique tram/elevator—essentially a cross between a cable railway and a ferris wheel—up either the north or south leg to the top of the arch, where you can see for dozens of miles into Illinois and Missouri. The cars are '''very small'''; they hold five very close friends or relatives each, and are not suitable for the claustrophobic. Tickets sell out during peak season; expect a long wait on major summer holidays to go to the top.
Listen to the audio guide for Gateway Arch National Park Free on WIP — starts by itself when you arrive, even with the screen off