Christianity and Islam have clashed, yet here a Serbian Orthodox church and a mosque stand together.

The longest hedge maze in the world.

Eighty million natural history specimens call this gargantuan museum home.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

A pair of connected skyscrapers form this symbolic gateway.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The world's oldest bookshop still in operation.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

A full-size replica of this well-preserved temple lets you take a walk through the Mayan age.

This staircase full of Mayan hieroglyphics is perhaps the largest single text in the world.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

A battle between nature and architecture in the Cambodian jungle.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

In Egypt's expanding metro area, many of the neighbors are dead.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."