If you want to spice up your road trip with unusual places to eat, here are ten quirky restaurants in the United States that are worth knowing about.

1 – The Airplane Restaurant, Colorado

Afraid of flying but still dream of eating in a plane? This restaurant is housed inside a Boeing and decorated with hundreds of aviation photos and objects. Fortunately, the plane never leaves the ground. Website: http://www.solosrestaurant.com/

2 – SafeHouse, Milwaukee & Chicago

Turn yourself into a secret agent for the duration of a meal. Intrigue, themed evenings, and fun are all part of the concept, and you even need the password to get in. Website: http://www.safe-house.com/

3 – Charlie Russell Chew, Montana

Want to eat on a real train? This dinner experience combines a meal with a journey through beautiful Montana landscapes over about three and a half hours. Website: http://www.montanadinnertrain.com/

4 – Jekyll and Hyde Club, New York

Like the novel that inspired it, this New York restaurant has two sides: a more standard dining area and a mysterious one with horror-themed scenes, werewolves, Frankenstein, and plenty of theatrical effects.

5 – Sci-Fi Dine-In Theater Restaurant, Disney, Orlando

Want to travel back in time? At this Disney restaurant, you eat in a car while watching old science-fiction and 1950s-style film clips. It is one of the most memorable themed restaurants in Orlando.

6 – Corvette Diner, San Diego, California

A classic American diner with several themed dining rooms such as the Regal Room, Corvette Clubhouse, Gamers Garage, and Galaxy Grill Room. The décor changes the mood from one room to another.

7 – Bors Hede Inne, Washington

Step back into the Middle Ages in this restaurant designed like a fourteenth-century village. The décor is rustic and the dishes are inspired by period recipes.

8 – Ninja, New York

Looking for strong sensations? In this magnificent setting styled like an old village, ninjas jump out from everywhere while you eat. Even going to the restroom can become part of the experience.

9 – Heart Attack Grill, Las Vegas, Nevada

High cholesterol? Then this place pushes the joke all the way. Guests wear patient gowns and follow the doctor’s “prescription”: giant burgers, mountains of fries, and an over-the-top medical theme.

10 – The Big Texan Steak Ranch, Amarillo, Texas

This restaurant attracts close to half a million visitors a year thanks to its famous challenge: eat an enormous steak of around two kilos, the Texas King, in under an hour and the meal is free.