An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Singapore's landscaping project is home to 18 incredible Supertrees.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

Postal archives over 150 years old offer a window into Singapore's culture and tradition.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A contemporary fresco movement illustrates the region's rich history.

An important landmark in the history of algebraic logic.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

An ancient iron pillar in Delhi that seems to be rustproof.

This quirky countryside store is known for the goats that hang out and eat the grass on its roof.

The Origin of On the Origin of Species.

The oldest public library in Ireland.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The first declared National Monument in the United States.

A beautiful geyser under environmental threat.