Here are two interesting spaces, one underground proposal from Mexico City and a large piece of infrastructure in Japan.

1. A Mexican architect has drawn up plans for a building that is just the opposite of a skyscraper:

Suarez has imagined a massive building for those who prefer holes to heights and a novel solution around a law that bans structures higher than eight stories in the crowded, historic center of Mexico City.

Instead of a soaring tower, Suarez wants to dig an inverted pyramid nearly a thousand feet deep with enough apartments, stores and offices to hold 100,000 people.

Kind of sounds like an acropolis from Simcity. What would people do for natural light – would people be more willing to live far underground than high above a city?

2. A large piece of infrastructure under Tokyo is known as the “underground temple.” Its real job: help control floods.

The Metropolitan Area Outer Underground Discharge Channel, also known as the G-Cans Project or the “Underground Temple”, is an subterranean water infrastructure project built to protect the capital Tokyo against floodwaters during rain and typhoon seasons. It is believed to be one of the largest water collection facilities in the world. Building began in 1992 and the massive structure now consists of five concrete silos, a large water tanks and 59 pillars connected to a number of pumps that can pump up to 200 tons of water into the Edogawa River per second. It has also become a tourist attraction, as well as a location for movies, TV shows and commercials.

This kind of looks like the depiction of the large temple-like spaces of Moria in The Lord of the Rings. This also reminds me of the Deep Tunnel project under Chicago which is also for floodwater – it is the largest infrastructure around (one of the largest such projects in the country – see some earlier pictures here) but hardly any Chicago area resident knows that it even exists.

(Two quick thoughts: both of these spaces would be large and impressive. Second, is getting one’s architecture news from Yahoo good or bad?)