Three pristine alpine lakes named in memorial of an accident that resulted in three different plane crashes.

Hidden behind an industrial area, this is one of the very few such transporter bridges in existence.

This covered bridge was used by both Union and Confederate troops during the Battle of Gettysburg in 1863.

This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

An assortment of armored tanks and Howitzer cannons in the middle of the Sonoran Desert.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

The helicopter that "Tricky Dick" absconded from the White House in on his last day in office.

St. John the Baptist's forearm is housed in this remote 11th-century monastery.

One of the best-preserved medieval streets in Europe.

Volkswagen's dedicated museum dives into the complex history of one of the world's best known cars.

Once the center of power for the region's various factories.

A converted hangar displays dozens of helicopters, from a famous 1943 rescue chopper to several autogyros.

The evocative ruins of a medieval village.

This small Milan street is filled with colorful homes and a rich history.

Explore an eerie, abandoned medieval citadel.

See four top-secret US spy aircraft of the Cold War era, including the legendary SR-71 Blackbird and the A-12 Oxcart.

The magic of Spanish aviation housed under one roof.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

This diesel train serviced the Brooklyn waterfront for more than three decades.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

A restored World War II Churchill Mark VII Tank now stands guard in Carrickfergus.

This 900-foot structure with 20 arches crossing a Scottish river was built in the late 19th century.