There's a cool app out there for the folks who love seeing then-and-now images of historic landmarks and buildings throughout America.

The concept of ScenePast's "Americana Road Trip" app, which was released over the summer, is that they host images of vintage postcards of amusement parks, roadside attractions, restaurants, motels and hotels, and other notable buildings throughout the U.S., and then compare them to snapshots of what the places look like today. They already have over 600 nostalgic Americana postcards and their searches can go back as far back as the early 1900s.

In the snapshots above, we get to see the Brown Derby in Beverly Hills in the 1940s, and now as a Louis Vuitton store today. The cool part is that the dome over the store is a nod to the hat sign from the Brown Derby. And we also get to see how Venice Boardwalk has changed since the early 1900s as well as a look at Disneyland's Tomorrowland back in the 1960s.

Michael Bernstein, the co-creator of ScenePast, previously created a similar app last year that compared scenes from films and TV shows to images of the places today. "We had a great time with the ScenePast Movie/TV location app (and received some great feedback) that we wanted to do a followup app—one that featured locations from across the country and still allowed users to 'time travel' and see cool locations then and now," Bernstein tells LAist.

They get their postcards from postcard shows and buy others from eBay, which Bernstein says is a "treasure trove" for this kind of stuff. Fans even send them postcards to their growing catalog.

The app is available on iTunes for $0.99 and can be found here.