World's second largest particle accelerator, where nature reveals its secrets.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

A bizarre house filled with an astounding array of collections.

This striking art museum holds an amazing series of curiosity cabinets.

Wisconsin's most celebrated export gets the royal treatment on I-94.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

This historic hotel invented the chocolate brownie.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

There must be a pun in this haystack somewhere...

A semi-scholarly approach to sex.

This collection honors the iconic, and proudly American lighter that just won't quit.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This dramatic rail curve was once the target of a failed Nazi attack.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

This indoor ski resort has a mountain contained inside a mall.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This bridge was constructed from the rubble of the infamous Bastille.