Ответ:A — 3: However, besides serving their main function they often become tourist attractions, as a lot of them are true architectural wonders.

B — 8: When it was built in 1968, it was the tallest structure in the world, which it remained until 1975.

C — 2: The first Radio Tower in Moscow was built during the Civil War in 1922 by the outstanding Russian architect Vladimir Shukhov and is a hyperboloid structure.

D — 6: Some of the most common ones are base-jumping, an extreme sport where participants jump off high structures with parachutes; and bungee jumping, where the jumpers are attached to a tall structure with a large elastic cord.

E — 4: In 2009 the tower reopened its doors to tourists.

F — 5: On July 21, 2018, Ostankino Tower was open again to 28 sportsmen from 12 countries who raced up its winding staircase.

G — 1: but it paid off: office and apartment space pricing is over $40,000 per m2, and over 90% of all the apartments and offices are now occupied!