A weekly bazaar sells thousands of books, from vintage collectibles to paperbacks sold by weight.

The ruins of a medieval citadel believed to be haunted by a ministry of wish-granting djinns.

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

A favorite haunt of Delhi's politicos and intellectuals, this old-school coffee shop was shut down under Indira Gandhi's Emergency.

A commemoration of the little-known cultural influence that Tolstoy had on India.

A startling, centuries-old subterranean marvel hides in plain sight.

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

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

A neglected bell tower in modern Colombo is a symbol of the city's colonial past.

This space rocket-like Buddhist stupa sits atop two giant arches and can be seen from out at sea.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The largest recovered section of Titanic sits in a hotel in Las Vegas.

An enormous illuminated figure dances on the Las Vegas strip.

A giant open-air sculpture made of over 200 full-sized boats.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

This massive neon wheel is the only one of its kind to be built over a bridge.

China’s breathtaking futuristic library is lined floor to ceiling with fake books.

A part of the world's largest marsh seems to be growing bright red Martian grass.

A magical work of architecture where a wind turbine enables monks to levitate.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

Forgotten for decades, the first medical school built in Communist China is full of surprises today.