Temporary Burning Man sculpture made of two 18-wheelers.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A 20-foot-tall quarter commemorates George Washington’s ties to Bedford County.

The world's largest collection of historic U.S. military naval vessels.

The only Leonardo Da Vinci painting in the Western Hemisphere.

This large garden vase urn has nothing to do with the seventh U.S. President—it was designed by one landscape designer to honor another landscape designer's contributions to the National Mall.

This historic boathouse was constructed using salvaged lumber from burned barns.

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

Beneath unsuspecting visitors feet, a capsule containing pieces of America’s civil rights history.

This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.

This stone tower was built to protect Crete from incoming pirates.

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

A historic and beautiful Art Nouveau chamber in a historic railway station.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

This gate served as a small lock-up jail in the 14th century.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

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

This historic hotel invented the chocolate brownie.

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

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Illegal drag racing two stories beneath Chicago’s streets.