Cell phone tower constructed entirely of wood.

Albert Einstein's head sticks out of a snail shell stacked on a rocket in this truly bizarre monument to the scientist.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

This natural hill rose another 130 feet from the debris and rubble added after World War II.

This old wooden funicular railway leads to a cemetery in the forest.

Remnants of a cone-shaped Nazi bomb shelter.

Power line with pylons on huge concrete bases to prevent terrorist attacks.

Shortest overhead power line in the world.

This statue has a painful history, but activists have since recontextualized it as a way to educate visitors about the dangers posed by fascist regimes.

This giant statue of a vulva became internationally famous after an American exchange student got stuck in it.

The narrowest street in the world is in danger of closing up entirely.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

Elvis's own personal tropical hideaway.

Walk the whole Mississippi River!

This replica of the Greek structure is in the heart of Nashville.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

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

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

The oldest continuously occupied public building in the United States.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.