These termites have an large and deadly abode—impressive by day, dazzling by night.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

An Amazonian hotel is the ultimate treehouse and provides stilt based accommodation.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

This Upper East Side apartment co-op was designed as a tuberculosis sanitarium.

The private island of Yale's elite Skull & Bones society is kind of a dump.

Snack on a partially gestated duck egg.

A granite waterfall cascading down is one of the highest multi-tiered falls in the state.

This controversial museum includes such detested exhibits as a chocolate suicide bomber and fecal-smelling digestion machine.

A huge stone pyramid built for fun.

The once-dying town of Sheffield, Tasmania has reinvented itself as a village of painted wonders.

The yawning remains of a complex naval fortress still haunt this Australian shore.

The largest wax museum in the southern hemisphere features a grizzly chamber of horrors.

The "Rocky Horror Picture Show" character has a hidden camera that broadcasts people doing the "Time Warp."

The real place where the One Ring to rule them all was forged.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

A neo-Gothic castle in the Argentinian countryside.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

A toxic lake near a volcanic caldera that is home to flamingos and other life.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

A tower devoted to — and modeled after — the Divine Comedy.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.