Each winter this underground cave forms a dazzling ice palace.

A sapling of the legendary tree where conquistador Hernán Cortés sat and wept after an Aztec uprising.

The largest archaeological site from the Yayoi period.

Eighty million natural history specimens call this gargantuan museum home.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

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

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

The highway's southernmost spot is a beloved local attraction.

This ancient Egyptian obelisk still bears the wounds of World War I.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

One part antique store, one part curiosities hodge-podge.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

The medieval woodcut-style artwork chronicles life in medieval London.

A mysterious shape catches the eye in this 16th-century painting.