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

These ancient sacred grounds granted amnesty to those who managed to reach them.

A controversial memorial at the place where Captain Cook met his violent end.

A 60-room castle constructed by a horse-racing heir.

More than 300 years old, Kyoto's historic "teahouse" still operates as an invitation-only geisha club.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

This museum covers 10,000 years of Pre-Columbian Latin American history.

This statue was a gift to commemorate the Thai monarch's first visit to a foreign land.

A manifestation of modernist architectural ideas, this massive, multi-purpose building was one of the first of its kind in Southeast Asia.

A ring of soy sauce bottle bases decorate an important Singaporean landmark.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

Singapore's oldest Hindu temple.

Located off a bustling strip, a silent teahouse employs workers with hearing- or speech-related disabilities.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

Rumors of the occult haunt this upscale 1920s hotel.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

Only the face remains of this giant Buddha statue, which is said to be a source of luck for students.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

Mysterious stone tower featured in many alternative histories of the New World.