A bench and a bridge pay tribute to Birmingham's favorite heavy metal band.

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

This massive monument has been telling the time for 150 years—at a slight angle.

It was once nicknamed "the most bombed hotel in Europe."

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

A museum marks and documents the site of the Titanic's launch.

This ancient fort has been a great insight into the Roman presence in the region.

This 47-story "M" needed 20 years to be completed

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

Commemorating the spot where the famous scientist fed his pigeons.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

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

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This giant metal cross perched atop a mountain can only be reached by foot.

A fortified palace in the shape of a ship on the Thiou river.

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.