Step inside one of the world's most luxurious river cruise ships

River cruises are taking over as the new vacation of choice.

Uniworld specializes in these types of cruises. The luxury river cruise ship operator has 21 ships that travel along rivers in Europe, Russia, Egypt, and China.

The company recently introduced a new ship to its fleet: the S.S. Maria Theresa.

The ship has a staff of 57, a total of 75 rooms, and can accommodate up to 150 guests. The lavish interior makes the ship comparable to a baroque palace.

Cruises on the ship range from eight to 15 days and cost anywhere between $3,200 to around $12,000 per person.

Here's the S.S. Maria Theresa ship from the outside. It's 443 feet in length, has three decks, and an elevator.

The ship has three different routes, all of which are in Europe. The longest — European jewels — goes from Budapest to Amsterdam in 15 days and makes stops in Cologne, Germany, among other cities.

The two other routes go between Passau and Budapest. One of the main stops is the town of Salzburg in Austria.

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