Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Started as a kitchen garden, now the second largest botanical garden in the world.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

The Tudor-style cottage in the middle of the square is not quite what it seems.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

Hear the quietest sound from across the dome.

This London plaque marks the spot where David Bowie's famous alien made his debut.

One part local history, 99 parts gruesome haunted house.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

A secluded, little-known temple hidden amid the dense jungle.

A small 12th-century temple surrounded by waters believed to have curative properties.

A battle between nature and architecture in the Cambodian jungle.

A memorial dedicated to the victims of the My Lai Massacre.

Out of all the statues of Ho Chi Minh in Vietnam, this one is the tallest and the most impressive.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

More than 200 statues filled with cryptic symbols give this park spot an aura of horror vacui fantasy.

A boat ride through utter darkness, lit only by headlamps, reveals an emerald green pool locals believe is sacred.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

This Buddhist monastery once housed an image of Buddha containing a 19-carat diamond.

One of the world's tallest flagpoles.