This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

A volcanic crater that visitors can look inside.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

A mysterious spot where the laws of gravity seem not to apply.

A very big rock just plopped down in the New England woods.

This memorial garden is the final resting place of many beloved pets including that of a famous explorer.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

A 30-mile-long glacially-carved canyon leads to a massive pair of glaciers.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

This open-air spiritual sanctuary offers stunning views of Mt. Monadnock and provides a natural and peaceful environment for worship and meditation.

This art display in Dedham honors a local fish, and is dedicated to the volunteers who restored the canal.

This clock tower is all that remains of Bird Hall, constructed by one of the founding families of this Massachusetts town.

Malcolm X's house during his most formative years faces an uncertain future.

Eliot was the first missionary to produce religious text for Algonquians in their own language.

Located in a beautifully restored ice house, this museum is the result of decades of hard work and devotion to the craft of plumbing.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

One of the last remaining movie theatres in the country that features a rear-projection system.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

The location of this historic castle was inspired by a donkey.

Largest lake in Great Britain measured by surface area.

360° views of the city plus five floors of optical illusions and hands-on science.

These formal gardens were designed to be admired from the vantage point of the castle.