Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The history and future of cannabis.

The world's only museum devoted to the wonders of fluorescence.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A contemporary art installation housed within a Gothic cathedral.

This "flat geyser" bubbles up out of the ground periodically like a disappearing river.

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

Eternal flame said to be a Hindu Goddesses fiery tounge.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

This hilltop warren of monastic dwellings is the result of centuries worth of Mongol attacks.

Deep in the Thar desert, a temple crawling with thousands of holy rats.

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

This abandoned fort is said to be the most haunted place in India, so much so that entry is prohibited after sunset.

A centuries-old fortress city lies in ruin.

Remote town home to Himachalis, Israelis, and tons of hashish.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

A complex of six forts embedded in the Rajasthan hills.

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

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.

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

A mecca for India's Jains.

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