A Christian monastery stands on what was once a holy Incan temple.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

Church in Manhattan holds the bloody sock of Padre Pio, among with many other unusual relics.

An artist's cute bronze subway sculptures belie his violent artistic past.

A bit of retro transportation flair preserved in the world's largest department store.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

The first mosque in the world to receive electricity.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

The tallest building in the Republic of the Congo is a source of pride despite its towering maintenance costs.

One of the now-less-hidden floral gems of the "Emerald Necklace."

A monument to the art of slicing people open.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

On holy holidays, Israel's second president used this room atop Mount Zion as a refuge to read the Torah.

Two thousand artifacts from around the world collected by one woman who loved to travel.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This supermarket is suspended 25 feet above an interstate highway.

A free, public museum dedicated to the fascinating science of sight.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.