This experimental utopian "city of the future" in rural India may hold a dark secret.

This magnificent stepwell is designed as an inverted temple and adorned with 1,500 sculptures.

A complex of six forts embedded in the Rajasthan hills.

The world's second-largest sundial, made entirely out of stone.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

Sacred Indian temple that’s all monkey business.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

The remains of what was, not so long ago, the world's largest city.

This otherworldly palace-mausoleum complex is the stuff eternal dreams are made of.

A mecca for India's Jains.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

Centuries-old bridges grown from tangled roots.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Two giant painted cooling towers make for one of the world’s most epic bungee jumps.

Nelson Mandela lived here with his family from 1946 until his arrest in 1962.

A large-scale steel sculpture entitled 'The Shadow Boxer' pays tribute to Nelson Mandela.