Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This coastal cavern is associated with the Hawaiian god of creation.

One of Oahu’s best snorkeling and diving spots was created by warm water discharged from the nearby power plant.

Taste rums made with heirloom sugarcane on the distillery's own estate.

This ancient Hawaiian henge may have been an early star chart.

Race through the maze, get your name on the sign.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

This Pennsylvania structure, the oldest building in Gettysburg, was once a stop on the Underground Railroad.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Experience the pivotal Civil War battle at this interactive museum.

An ode to one of the first concerts broadcast via satellite.

Built by the patriotic residents of Boonsboro in a single day.

This striking Victorian Home with its 113-foot turret is best known as the site where abolitionist John Brown was executed in 1859.

Time travel with sweets across history at this research-based candy store.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

The remains of a hospital that housed over 200 leprosy patients.

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.

Three columns of volcanic rock shoot out of the ocean.

A tiny village church in dramatic surroundings.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

This fantastical waterfall is hidden in a cave located in a cracked cliff.