Places SeeingCoolPlaces Wants to Go

This iconic fortress was once the crown jewel of Haiti's national defense.

The royal seat of Henri Christophe, a formerly enslaved man who became Haiti's only king.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.

Built in 1512, the oldest cathedral in the Americas.

The first official clock in North America, it kept time for the Spanish government of Santo Domingo.

The oldest colonial fortress in the Americas was once the home and later prison of Christopher Columbus.

A sharply wedged sundial marks the point at which each day in the United States begins.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

The world's brightest bioluminescent bay.

Puerto Rico's once thriving oil company is now an abandoned wonderland of rusty steel.

This ''hidden'' 19th-century bridge played a simple, yet important role during the Spanish-American War.

These red and black houses were awarded to the firefighters who saved their city from an enormous blaze.

Built some 700 years ago, this Taíno ceremonial site features ball courts, petroglyphs, and evidence of ancient astronomy practices.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

This rock in the middle of a river in Jayuya contains dozens of Pre-Columbian Taíno petroglyphs.

This nearly abandoned "company town" is a ghost of Puerto Rico's once-lucrative sugar industry.

This colorful gate stands as an entrance to the walled city of Old San Juan.

This small fort played a huge role defending Puerto Rico’s capital city.

The ruins of the first Spanish settlement in Puerto Rico.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

Invading U.S. troops were first seen from this now-abandoned tower, leading to the Spanish-American War.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

Years of neglect and nature took a toll on this 19th-century lighthouse.