A striking series of six bridges connect islands in Indonesia.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

Hunting trophies decorate Oregon's most unique bar-restaurant.

Limestone caves with spectacular showcase chambers.

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.

Home on the Hillside, and home of the first breakfast cereal.

The largest ancient burial mound in Ohio.

A wonder of natural limestone formations etched by millions of years of natural interaction between rainfall and rock and air.

Every autumn, this hillside is ablaze with red summer cypress.

A remote coral island with a gristly history of shipwreck, battles, and a horrendous war crime.

The youngest volcano in Central America.

Remembering the Alamo with a full-scale replica of the 1836 city.

A natural history museum with an extensive collection of bird dioramas.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

A lake in the middle of the tundra of Quebec is said to be the purest freshwater lake on Earth.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

Private collection of art inspired by cabinets of curiosity.

Remote Honduran Islands with a colorful history.

The world's largest collection of witchcraft regalia.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

World's only nuclear reactor operated by liberal arts undergraduates.

Iron Age grave stones and Viking burials, a short drive from Gothenburg.

A historic observatory precariously perched at the "Top of Europe."