In a small town outside Jerusalem, a roadside diner is devoted to all things Elvis Presley.

This historic rec center in the heart of Israel is a bastion of peace and togetherness.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

This national landmark is also home to a massive treehouse.

Featuring the the longest lift span of any vertical-lift bridge in the world.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

The world’s first penitentiary, meant to be humane, drove men insane.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The oldest garden in Prague, once part of an medieval orchard.

A surreal statue honoring Prague's favorite literary son.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

Sniff the Titan Arum's rotting flesh.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Abandoned blast furnaces are an enduring reminder of Scranton's once booming iron business.

The largest known open fault in the United States is basically a giant natural refrigerator.

This subterranean funicular is one of the world's smallest subways.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

An early 20th-century bullring converted into a modern shopping center.

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

A sculpture made from recycled materials and hand-blown glass dedicated to transportation and transformation.