A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

This unusual lava tube spouts seawater during high surf.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This blowhole is supposedly caused by a trapped monster.

Submerged lava formations create incredible waterworks.

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

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

Watch the newest land on the planet form before your eyes.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

A tunnel of hardened lava along Maui’s famous Road to Hana.

This black shoreline is made up of exploded lava particles.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Soaring over the Niagara Whirlpool since 1916.

Experience a charming 1930's version of "infotainment."

This vintage animatronics show is the Vegas version of a walk through the woods.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

An outlandish shoe shaped house built by an eccentric millionaire.

The oldest farmer's market in America is so ancient it was approved by the King of England.