For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

The walls of the iconic dome are hollow and have a secret stairway.

There’s a hidden military meme engraved on the World War II Memorial.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Baptisms in troughs and post-sermon rodeos at the world's biggest cowboy church.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

A health museum containing a 27’’½-foot intestine.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

Scale replica of China's ancient terracotta tomb warriors and Forbidden City are the side project of an eccentric millionaire.

Fantastic collection celebrating the final send-off.

This little dolphin is the first monument dedicated to the LGBTQ+ community in the southern United States.

Belly up to the bar in Cowtown, don't forget to buy some boots.

This downtown Dallas art installation is always on the lookout.

Unusual house, in an unusual neighborhood, home to some very unusual peanuts.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.