The Iberian Peninsula, particulary Spain and Portugal. My money is on Spain.
;)
I think the term you're looking for is 'intersection'
The availability of cheap steel allowed larger bridges, railroads, skyscrapers, and ships.
Other important steel products were steel cable, steel rod, and sheet steel, which enabled large, high-pressure boilers and high-tensile strength steel for machinery. Military equipment also improved significantly.
The mountains and the stores and restaurants and cafes and what they wear