A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

An exotic wildlife habitat right off The Strip.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Where the leftovers of love affairs can live on forever.

This massive redwood tree has a hole in the base big enough to drive through.

An optical illusion found amid a logged redwood forest.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A monument marks the location of the first successful steamboat demonstration.

Browse through roughly 130,000 titles in the world's largest independent video rental store.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

A much-maligned monument to teetotalism.

The most accurate timepiece in the world.

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

The privately owned cemetery that holds room for Washington's finest when they step down from life.