One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Ozymandias’ time-keeping temple.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Founded in 670, this ancient mosque is an architectural time portal.

These Finnish rapids have been attracting tourists for over a hundred years and are now released with the push of a button.

A subterranean house of worship carved right out of the bedrock.

This elaborate temple was built around one of the Buddha's teeth.

An ancient stone fortress considered by many to be the eighth wonder of the world.

The history of radiation is on safe display at the foot of a radiation science laboratory.

Monasteries on rock pillars, once accessible only by frayed ropes.

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

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

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

Sacred Buddhist home of some spiritual monkeys.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The Uros people live on floating reed islands in lake Titicaca.

The oldest stone house in Paris was built by its most famous alchemist.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Northern Ireland's Brobdingnagian stepping stones.

A museum marks and documents the site of the Titanic's launch.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This single room has survived the centuries with almost no deterioration.