Describe the Radley house. Why does it fascinate Dill

Dill is curious....... he's fascinated by the unknown.

"The Radley Place fascinated Dill. In spite of our warnings and explanations it drew him as the moon draws water, but drew him no nearer than the light-pole on the corner, a safe distance from the Radley gate. There he would stand, his arm around the fat pole, staring and wondering."

The house is described thus....

"The house was low, was once white with a deep front porch and green shutters, but had long ago arkened to the color of the slate-gray yard around it. Rain-rotted shingles drooped over the eaves of the veranda; oak trees kept the sun away. The remains of a picket drunkenly guarded the front yard— a “swept” yard that was never swept— where johnson grass and rabbit-tobacco grew in abundance."