One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

An ancient iron pillar in Delhi that seems to be rustproof.

Centuries-old bridges grown from tangled roots.

Modest by day, illuminated majestically at sunset.

An abandoned settlement originally established by British colonialists in the Andaman archipelago.

The former Willingdon Airport started operations in 1929, in India's capital, Delhi. Now, it's used for maintenance runs and helicopter rides.

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

A blooming house of worship for the masses.

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