These engineering masterpieces are a dominant feature of the Belfast skyline.

A preserved factory in the "Home of the Carrousel" is now a museum dedicated to the classic wooden ride.

The world-record holder for the longest bridge stretching continuously over water.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

This museum explores the grim reality of life in the earliest British colonies in America.

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

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A 19th-century architectural wonder designed by the "father of the skyscraper."

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

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

One of its engravings is believed to be among the first representations of medical and surgical instruments.

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

This ancient structure is widely thought to be the oldest intact pyramid in the world.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

An underground city of salt.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

Ozymandias’ time-keeping temple.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This massive subterranean fissure is known as the "underground Grand Canyon."