Introduction:
Double dome construction is a unique architectural technique where two domes are built, one inside the other, creating a visually striking structure. Among the given options, the finest example of double dome construction is the Lodhi Garden.

Explanation:
Lodhi Garden, located in New Delhi, India, is a historical park that houses several architectural marvels from the Lodhi dynasty. The most notable structure in the garden is the Tomb of Sikandar Lodi, which is an excellent example of double dome construction.

Double Dome Construction:
Double dome construction involves the use of two domes, one inside the other. The inner dome is smaller and rests on the top of the walls, while the outer dome is larger and covers the entire structure. This technique creates a visually appealing effect and enhances the structural stability.

Tomb of Sikandar Lodi:
The Tomb of Sikandar Lodi in Lodhi Garden showcases the finest example of double dome construction. Here's why:

1. Architectural Design: The tomb has a square base with a double dome structure. The inner dome is made of red sandstone, while the outer dome is built with white marble. This combination of materials adds to the elegance and grandeur of the structure.

2. Symmetry: The double dome construction creates a symmetrical design, with the inner and outer domes perfectly aligned. This symmetry is a hallmark of double dome architecture and can be observed in the Tomb of Sikandar Lodi.

3. Aesthetics: The double dome construction enhances the visual appeal of the tomb. The contrast between the red sandstone and white marble, combined with the intricate carvings and detailing, creates a stunning architectural masterpiece.

4. Structural Stability: The double dome construction provides structural stability to the tomb. The inner dome supports the weight of the outer dome, distributing the load evenly and preventing any structural deformations.

Conclusion:
Among the given options, the Lodhi Garden, specifically the Tomb of Sikandar Lodi, stands out as the finest example of double dome construction. Its architectural design, symmetry, aesthetics, and structural stability make it a remarkable structure worth admiring.