The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

A beautiful young girl said to have been buried alive in her coffin…

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

The oldest library in Scotland was built from the remains of a church to hold a churchman's library.

Peek through a transparent pyramid and drink in the mountain made of books.

Acres of natural wonders left behind by a socialite-turned-gardener.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

"Try not to knock anything over!"

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A luxury hotel housed in a former 15th century Gothic church.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

These lush botanical gardens employ the most purrfect pest control force.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This might just be the TARDIS of bookstores.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A wondrous old library overlooking the nation's capital.

This influential Renaissance-era library was once the haunt of kings and monks.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

This sprawling bookstore spans four floors and has more than a million books in stock.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.