You can find the Tokyo Tower off of the Akabanebashi and Onarimon metro stations. Admission to the main observation deck is 1,200 yen (around $8) for adults and 500 yen (about $3.50) for children ...
There are plenty of skyscrapers that provide a bird's-eye lookout in Tokyo, including Tokyo Tower ... a.m. to 10 p.m. (note that the south observation deck closes at 5 p.m.). The closest metro ...