To enhance the given chart with additional information about the Petronas Towers and Taipei 101, we can add two meaningful features that highlight unique aspects of these buildings. Here are the two features along with their values for each tower:
1. Architect(s): This feature provides information about the main architect(s) responsible for the design of the buildings.
2. Structural System: This feature describes the primary structural system used in constructing the buildings.
Let's present these features in the chart format:
[tex]\[
\begin{array}{|l|c|c|}
\hline
\multicolumn{1}{|c|}{\text{Feature}} & \text{Petronas Towers} & \text{Taipei 101} \\
\hline
\text{Construction Dates} & \text{1992-1998} & \text{1998-2004} \\
\hline
\text{Cost of construction} & \$1,600,000,000 \text{ USD} & \$1,758,000,000 \text{ USD} \\
\hline
\text{Height (antenna/spire)} & 1,482.9 \text{ ft} & 1,670.60 \text{ ft} \\
\hline
\text{Height (roof)} & 1,241.1 \text{ ft} & 1,476.75 \text{ ft} \\
\hline
\text{Height (top floor)} & 1,230.3 \text{ ft} & 1,440.94 \text{ ft} \\
\hline
\text{Number of floors} & 88 & 101 \\
\hline
\text{Number of elevators} & 78 & 61 \\
\hline
\text{Speed of elevators} & 15.6 \text{ mph} & 37.7 \text{ mph} \\
\hline
\text{Architect(s)} & \text{César Pelli} & \text{C.Y. Lee \& Partners} \\
\hline
\text{Structural System} & \text{Tube in Tube} & \text{Mega Frame} \\
\hline
\end{array}
\][/tex]
By adding these features, the chart not only provides a comprehensive set of data about the physical characteristics and construction details of these towers but also includes critical architectural and structural information that contributes to understanding their design and engineering significance.
