High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Picnic on the seashore in the footsteps of ancient kings, protected by giant mythical cat beasts.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

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

A blooming house of worship for the masses.

The world's largest reflecting pool is just two centimeters deep.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This 15th-century mosque is a beautiful blend of Hindu and Islamic architecture.

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

A magical expanse of colorful street murals lies hidden within the quiet neighborhood.

This Gothic-style church is reputedly built atop the remains of one of Jesus's apostles.

This 11th-century temple gave rise to the word "juggernaut," as well as some mysteries that defy scientific explanation.