This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Carved faces add a touch of magic to this island's impressive oak trees.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

This natural marble cave is one of only five national monuments in Oregon.

An endless sea of white conical domes.

One of the most well-preserved temples of ancient Egypt.

A giant portrait of an ancient king looms over the river.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Bridge that died in war and was resurected.

A "haunted" landmark on the coast of Southern California.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

The Habsburgs' royal collections of art and wonders.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.