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

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

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Huge abstract sculptures of the Puerto Rican Flag.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

No one knows how many bodies are in this vault in a Chicago public park.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A monument to the art of slicing people open.

A piece of John the Baptist in the American heartland.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

This woodland architectural installation acts as a camera obscura for the heavens.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The sign to a demolished amusement park now stands in front of a local library.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

The most accurate timepiece in the world.

Shop of curiosities with a dinosaur museum tucked in its basement.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

An extensive collection of ancient Egyptian artifacts and mummies.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.