The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

This hand-carved wooden carousel in the Story City North Park was built in 1913.

A monument to the two U.S. officers killed by North Korean troops while trying to trim a poplar tree.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

This group of small islands on Lake Nicaragua formed after an eruption of the Mombacho volcano.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Once one of the largest producers of pig iron in the world.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

One of the best examples of Art Deco architecture in the United States.

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

In the main dining room, a nine-ton boulder caps the fireplace designed by local architect Earl Young.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

There's more contention than one might expect from cherry pie pans.

Talula the swan has been welcoming visitors to Elk Rapids, Michigan, for more than four decades.