One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Three hundred years of preserved Spanish colonial history in San Antonio.

These boots are made for selfies.

The oldest active mini golf course in the U.S. has an elegant Art Deco style filled with lush tropical plants.

A hidden three-foot-wide house separates these two regal churches.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

This whimsical public art installation is a unique homage to Liverpool's industrial heritage.

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The Boston square dedicated to the dark poet who was born nearby.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This statue intended for children to enjoy became a minor political spat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

This historic patch of real estate offers a glimpse of colonial Boston.

This landmark cemetery in Boston was created more than 300 years ago.

A mysterious stone embedded at the base of a historic Boston building.

A tree grown from astronaut seeds which were exposed to cosmic rays.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.