The highest point in Texas is capped by a big silver pyramid.

Ghost town with a beer-drinking goat for mayor.

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

A larger-than-life monument to the overlooked women who braved Western expansion and broke down societal barriers.

An oil baron's wild paradise and the winner of an ill-fated air race.

One believer transformed a local curiosity into proof of Vikings on the Great Plains.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

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

The television series' iconic giant foot was borrowed from this classical painting.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

These massive mitts are made of 30 tons of devotional bronze.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Secret refuge and museum of the Duke of Florence.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The oldest operating pharmacy in the world features 800-year-old recipes.

The middle finger of modernity.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.